strength

(strĕngkth, strĕngth, strĕnth)

1. The state or quality of being strong; physical power or capacity: the strength needed to lift a box.

2. The capacity to resist attack; impregnability: the strength of the ship's armor.

3. The capacity to resist strain or stress; durability: the strength of the cables.

4. The ability to deal with difficult situations or to maintain a moral or intellectual position: Does he have the strength to overcome such a tragedy?

a. The number of people constituting a normal or ideal organization: The police force has been at half strength since the budget cuts.

b. Capability in terms of numbers or resources: an army of fearsome strength.

a. An attribute or quality of particular worth or utility; an asset: Your easygoing nature is one of your strengths.

b. One that is regarded as the embodiment of protective or supportive power; a support or mainstay: Her family has been her strength in difficult times.

a. Degree of concentration, distillation, or saturation: What's the strength of that cleaning solution?

b. Operative effectiveness or potency: the strength of the drug.

c. Intensity, as of sound or light: the strength of the wind.

d. Intensity of emotion or belief: the strength of feeling among the voters.

e. Cogency or persuasiveness: the strength of his argument.

8. Effective or binding force; efficacy: the strength of an argument.

9. Firmness of or a continuous rising tendency in prices, as of a currency or market.

10. Games Power derived from the value of playing cards held.

Idiom:

on the strength of

On the basis of: She was hired on the strength of her computer skills.

[Middle English, from Old English strengthu.]

Synonyms: strength, power, might¹, energy, force
These nouns denote the capacity to act or work effectively. Strength refers especially to physical, mental, or moral robustness or vigor: "enough work to do, and strength enough to do the work" (Rudyard Kipling).
Power is the ability to do something and especially to produce an effect: "I do not think the United States would come to an end if we lost our power to declare an Act of Congress void" (Oliver Wendell Holmes, Jr.).
Might often implies abundant or extraordinary power: "He could defend the island against the whole might of the German Air Force" (Winston S. Churchill).
Energy refers especially to a latent source of power: "The same energy of character which renders a man a daring villain would have rendered him useful to society, had that society been well organized" (Mary Wollstonecraft).
Force is the application of power or strength: "the overthrow of our institutions by force and violence" (Charles Evans Hughes).

Usage Note: Although the word strength is not spelled with a k, it is most often pronounced (strĕngkth), with a (k) sound inserted between the (ng) and the (th). This intrusive (k) occurs for a simple reason: In making the transition from the voiced velar nasal (ng) to the voiceless dental fricative (th), speakers naturally produce the voiceless velar stop (k), which is made at the same place in the mouth as (ng) but is voiceless like (th). Other words with intrusive consonants include warmth, which may sound like it is spelled warmpth, and prince, which may sound like prints. The pronunciation (strĕnth), which is made with (n) before (th), arises by the phonological process of assimilation. The velar (ng) moves forward in the mouth, becoming (n) before (th), which is made at the front of the mouth. Criticized in the past as sloppy, this pronunciation is now generally regarded as a standard, although less common, variant. The similar pronunciation of length is now also considered acceptable.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

strength

(strɛŋθ)

1. the state or quality of being physically or mentally strong

2. the ability to withstand or exert great force, stress, or pressure

3. something that is regarded as being beneficial or a source of power: their chief strength is technology.

4. potency, as of a drink, drug, etc

5. power to convince; cogency: the strength of an argument.

6. degree of intensity or concentration of colour, light, sound, flavour, etc

7. the full or part of the full complement as specified: at full strength; below strength.

8. (Banking & Finance) finance firmness of or a rising tendency in prices, esp security prices

9. archaic or poetic a stronghold or fortress

10. informal Austral and NZ the general idea, the main purpose: to get the strength of something.

11. from strength to strength with ever-increasing success

12. in strength in large numbers

13. on the strength of on the basis of or relying upon

[Old English strengthu; related to Old High German strengida; see strong]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

strength

(strɛŋkθ, strɛŋθ, strɛnθ)

n.

1. the quality or state of being strong; physical power; vigor.

2. intellectual or moral force.

3. power by reason of influence, authority, or resources.

4. the full force in numbers of an organization or body.

5. effective force or cogency: the strength of his plea.

6. power of resistance.

7. vigor of action, language, feeling, etc.

8. degree of concentration; intensity, as of light, color, sound, flavor, or odor.

9. a strong or valuable attribute: He was asked to list his strengths and weaknesses.

10. a source of power or encouragement; sustenance: The Bible was her strength and joy.

Idioms:

on the strength of, on the basis of.

[before 900; Middle English strengthe, Old English strengthu; see strong, -th¹]

Strength

a body of soldiers; a sufficient number.

Examples: strength of men, 1565; of people, 1500; of troops, 1400.

Strength

See Also: BODY, COURAGE, MUSCLES, TOUGHNESS

Air of impregnability that he carried with him like a briefcase full of secrets —Derek Lambert
As indestructible as a bride’s first set of biscuits —Jim Murray, about football player Mike Garrett, Los Angeles Herald
Bones … like bars of iron —The Holy Bible/Job
Built like a bouncer in a clip joint —Saul Bellow
Built like a brick shit-house —American colloquialism, popularized in American army.
With slight alterations some of the more colorful army and country similes can be cleaned up with the original meaning still implicit. For example, in her novel, Love Medicine, Louise Erdrich describes a character as being “Built like a brick outhouse.”
Built like a toolbox —Lee K. Abbott
A cobweb is as good as the mightiest cable when there is no strain upon it —Henry Ward Beecher
Gave off a sense of virility almost as positive as an odor —Samuel Yellen
Get the upper hand … like a strong sun —Albert Camus
Grew strong, as if doubt never touched his heart —Wallace Stevens
(Our meaning together is) hardy as an onion (and layered) —Marge Piercy
I am as strong as a bull moose —Theodore Roosevelt
I am like a forest that has once been razed; the new shoots are stronger and brisker —Victor Hugo
Looked as durable and tough as a tree growing on a stony hillside —Mazo De La Roche
Solid and strong, like a little bull —Frank Tuohy
Solid as a temple —Louis MacNeice
Strong and hard as a tree —Vicki Baum
Some other strength/tree comparisons include: “Strong as an old apple tree” (Eudora Welty) and “Sturdy as an oak trunk” (Ignazio Silone).
Strong as a door —Reynolds Price
Strong as a giant —Erich Maria Remarque
(A soul) strong as a mountain river —William Wordsworth
(An alibi as) strong as a twenty-foot wall —Jimmy Sangster
(And the muscles of his brawny arms are) strong as iron bands —Henry Wadsworth Longfellow
Strong as jealousy —William Blake
Strong as money —Philip Levine
What poet Levine is comparing to the strength of money is work.
(Somone wakens to a life as) strong as the smell of urine —Philip Levine
Strong as the summer sun —Anon
(Had grown) strong as the sun or the sea —Algernon Charles Swinburne
(This old woman is dangerous: she is as) strong as three men —George Bernard Shaw
Strong as the young, and as uncontrolled —Henry Wadsworth Longfellow
Stronger than mahogany —Anne Sexton
Strong, like a tower —Nina Bawden
(Vemish and his wife were) strong, like rocks, not like rivers. Their strength was more in remaining than in doing —Barry Targan
(Your blunderer is as) sturdy as a rock —William Cowper
Takes brute strength, like pushing a cow uphill —Anne Sexton
Using his fist the way a carpenter uses a hammer —Irwin Shaw
You’re [Alais addressing King Henry in The Lion in Winter] like the rocks at Stonehenge; nothing knocks you down —James Goldman

power

– strength

1. 'power'

If someone has power, they are able to control other people and their activities.

People in positions of power, such as teachers, must act responsibly.

He believes the President has too much power.

2. 'strength'

Don't use 'power' to refer to someone's physical energy, or their ability to move heavy objects. Use strength.

It took me some time to recover my strength after the illness.

This sport requires a lot of physical strength.

Collins COBUILD English Usage © HarperCollins Publishers 1992, 2004, 2011, 2012

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun	1.	strength - the property of being physically or mentally strong; "fatigue sapped his strength" property - a basic or essential attribute shared by all members of a class; "a study of the physical properties of atomic particles" good part - a place of especial strength brawn, brawniness, heftiness, muscularity, sinew, muscle - possessing muscular strength might, mightiness, power - physical strength heartiness, vigor, vigour, dynamism - active strength of body or mind hardiness, lustiness, robustness, validity - the property of being strong and healthy in constitution huskiness, ruggedness, toughness - the property of being big and strong stalwartness, stoutness - the property of being strong and resolute sturdiness - the property of something that is strongly built firmness, soundness - the muscle tone of healthy tissue; "his muscular firmness" indomitability, invincibility - the property being difficult or impossible to defeat endurance - the power to withstand hardship or stress; "the marathon tests a runner's endurance" invulnerability - the property of being invulnerable; the property of being incapable of being hurt (physically or emotionally) weakness - the property of lacking physical or mental strength; liability to failure under pressure or stress or strain; "his weakness increased as he became older"; "the weakness of the span was overlooked until it collapsed"
	2.	strength - capability in terms of personnel and materiel that affect the capacity to fight a war; "we faced an army of great strength"; "politicians have neglected our military posture" military capability, military posture, military strength, posture sea power - naval strength capability, capableness - the quality of being capable -- physically or intellectually or legally; "he worked to the limits of his capability" firepower - (military) the relative capacity for delivering fire on a target armed forces, armed services, military, military machine, war machine - the military forces of a nation; "their military is the largest in the region"; "the military machine is the same one we faced in 1991 but now it is weaker"
	3.	strength - physical energy or intensity; "he hit with all the force he could muster"; "it was destroyed by the strength of the gale"; "a government has not the vitality and forcefulness of a living man" forcefulness, force brunt - main force of a blow etc; "bore the brunt of the attack" momentum, impulse - an impelling force or strength; "the car's momentum carried it off the road" vigor, vigour, energy, zip - forceful exertion; "he plays tennis with great energy"; "he's full of zip" intensiveness, intensity - high level or degree; the property of being intense
	4.	strength - an asset of special worth or utility; "cooking is his forte" metier, speciality, specialty, strong point, forte, long suit, strong suit asset, plus - a useful or valuable quality green fingers, green thumb - a special ability to make plants grow
	5.	strength - the power to induce the taking of a course of action or the embracing of a point of view by means of argument or entreaty; "the strength of his argument settled the matter" persuasiveness power, powerfulness - possession of controlling influence; "the deterrent power of nuclear weapons"; "the power of his love saved her"; "his powerfulness was concealed by a gentle facade" convincingness - the power of argument or evidence to cause belief
	6.	strength - the amount of energy transmitted (as by acoustic or electromagnetic radiation); "he adjusted the intensity of the sound"; "they measured the station's signal strength" intensity, intensity level radio brightness - the strength of a radio wave picked up by a radio telescope magnitude - the property of relative size or extent (whether large or small); "they tried to predict the magnitude of the explosion"; "about the magnitude of a small pea" threshold level - the intensity level that is just barely perceptible field intensity, field strength - the vector sum of all the forces exerted by an electrical or magnetic field (on a unit mass or unit charge or unit magnetic pole) at a given point in the field candlepower, light intensity - luminous intensity measured in candelas acoustic power, sound pressure level - the physical intensity of sound half-intensity - half the maximum intensity
	7.	strength - capacity to produce strong physiological or chemical effects; "the toxin's potency"; "the strength of the drinks" effectiveness, potency power, powerfulness - possession of controlling influence; "the deterrent power of nuclear weapons"; "the power of his love saved her"; "his powerfulness was concealed by a gentle facade"
	8.	strength - the condition of financial success; "the strength of the company's stock in recent weeks" successfulness, prosperity - the condition of prospering; having good fortune weakness - the condition of being financially weak; "the weakness of the dollar against the yen"
	9.	strength - permanence by virtue of the power to resist stress or force; "they advertised the durability of their products" durability, enduringness, lastingness tensile strength - the strength of material expressed as the greatest longitudinal stress it can bear without tearing apart indestructibility - the strength to resist destruction permanence, permanency - the property of being able to exist for an indefinite duration persistence, continuity - the property of a continuous and connected period of time changelessness - the property of remaining unchanged everlastingness - the property of lasting forever

strength

noun

1. might, muscle, brawn, sinew, brawniness He threw it forward with all his strength.
might weakness, frailty, powerlessness, infirmity, debility, feebleness

2. will, spirit, resolution, resolve, courage, character, nerve, determination, pluck, stamina, grit, backbone, fortitude, toughness, tenacity, willpower, mettle, firmness, strength of character, steadfastness, moral fibre Something gave me the strength to overcome the difficulty.

3. health, fitness, vigour, wellness, healthiness, lustiness It'll take a while before you regain full strength.

4. mainstay, anchor, tower of strength, security, rock, succour He was my strength during that terrible time.

5. toughness, soundness, robustness, sturdiness, stoutness, resistance He checked the strength of the cables.

6. power, influence, dominance, clout (informal), supremacy, ascendancy They have their own independence movement which is gathering strength.

7. force, power, intensity, energy, depth, vehemence, intenseness He was surprised at the strength of his own feeling.
force weakness, feebleness

8. potency, effectiveness, concentration, efficacy maximum strength migraine tablets

9. strong point, skill, asset, advantage, talent, forte, speciality, aptitude Take into account your own strengths and weaknesses.
strong point failing, weakness, defect, flaw, shortcoming, Achilles heel, chink in your armour

10. size, extent, magnitude, greatness, largeness the strength of the army

on the strength of something because of, due to, based on, on the basis of, by virtue of, on account of He was elected on the strength of his charisma.

under or below strength depleted, reduced, exhausted, weakened, used (up), spent, short, decreased, lessened, worn out, depreciated He was hampered by his regular troops being so much under strength.

Quotations
"Out of the mouths of very babes and sucklings hast thou ordained strength" Bible: Psalm 8

Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

strength

noun

1. The state or quality of being physically strong:

brawn, might, muscle, potence, potency, power, powerfulness, puissance, sinew, thew (often used in plural).

2. Power used to overcome resistance:

coercion, compulsion, constraint, duress, force, pressure, violence.

3. The condition of being free from defects or flaws:

durability, firmness, integrity, solidity, soundness, stability, wholeness.

4. Reliability in withstanding pressure, force, or stress:

fastness, firmness, hardness, security, soundness, stability, stableness, steadiness, sturdiness, sureness.

5. Capacity or power for work or vigorous activity:

animation, energy, force, might, potency, power, puissance, sprightliness, steam.

Informal: get-up-and-go, go, pep, peppiness, zip.

Translations

عَدَد القُوّاتقُوَّةقُوَّه

sílaplný stav

styrkekræfter

Stärke Kraft a Festigkeit

δύναμη σθένος

fuerza intensidad número poder aliento

vahvuusvoimavoimakkuus

force puissance vigueur

snaga

erőlétszám

styrkleikistyrkur

forza organico quantit...sulla scorta di...tutti insieme

強さ

힘

plný stav

moč

styrka

ความเข้มแข็ง

güç kuvvet takat üstünlük avantaj

sức lực

人数兵力力量实力

strength

[streŋθ] N

1. (= might, energy) (for particular task) → fuerzas fpl; (= general attribute) → fuerza f
he hadn't the strength to lift it → no tenía fuerzas para levantarlo
his strength failed him → le fallaron las fuerzas
she swims to build up the strength in her muscles → nada para fortalecer los músculos or coger fuerza en los músculos
you don't know your own strength → no controlas tu propia fuerza
you'll soon get your strength back → pronto recobrarás las fuerzas or te repondrás
to save one's strength → ahorrar las energías
with all my strength → con todas mis fuerzas

2. (= fortitude) → fortaleza f, fuerzas fpl; (= firmness) [of belief, conviction] → firmeza f
his help gives me the strength to carry on → su ayuda me da fortaleza or fuerzas para seguir adelante
strength of character → fortaleza f or firmeza f de carácter
to draw strength from sth → sacar fuerzas de algo
the independence movement is gathering strength → el movimiento independiente está cobrando fuerza
give me strength! → ¡Dios dame paciencia!
inner strength → fuerza interior
strength of purpose → determinación f
see also gather, tower

3. (= sturdiness) [of material, structure, frame] → resistencia f

4. (= power) [of argument] → lo convincente, solidez f; [of claim, case, evidence] → peso m; [of protests] → lo enérgico; [of magnet, lens, drug] → potencia f; [of wind] → fuerza f; [of alcohol] → graduación f
on the strength of that success she applied for promotion → en base a ese éxito, solicitó un ascenso
he was recruited on the strength of his communication skills → lo contrataron en virtud de or debido a su aptitud para comunicarse

5. (= intensity) [of emotion] → intensidad f, fuerza f; [of sound] → potencia f; [of colour] → intensidad f
he warned the government not to underestimate the strength of feeling among voters → advirtió al gobierno que no subestimara la intensidad or fuerza de los sentimientos de los votantes

6. [of currency] (= value) → valor m; (= high value) → solidez f, fuerza f
our decision will depend on the strength of the pound → nuestra decisión dependerá del valor de la libra
exports fell owing to the strength of the pound → las exportaciones bajaron debido a la solidez or la fuerza de la libra

7. (= good point, asset) → punto m fuerte
their chief strength is technology → su punto fuerte es la tecnología
to go from strength to strength his movie career is going from strength to strength → su carrera cinematográfica marcha viento en popa
the company has gone from strength to strength → la empresa ha ido teniendo un éxito tras otro

8. (in number) → número m (Mil, Police) → efectivos mpl
he has promised to increase the strength of the police force → ha prometido incrementar los efectivos de la policía
to be below strength = to be under strength
to be at full strength [army] → disponer de todos sus efectivos (Sport) [team] → contar con todos sus jugadores; [office] → contar con todo el personal
his supporters were there in strength or had come in strength → sus partidarios habían acudido en masa
to be on the strength (gen) → formar parte de la plantilla (Mil) → formar parte del regimiento
to take sb on to the strength → admitir a algn en la plantilla (Mil) → admitir a algn en el regimiento
to be under strength the team was under strength due to injuries → el equipo contaba con pocos jugadores debido a las lesiones
two people are off sick so we're a bit under strength → dos de los empleados se encuentran enfermos y estamos un poco cortos de personal
his army was seriously under strength → su ejército contaba con poquísimos efectivos

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

strength

[ˈstrɛŋθ] n

(= physical force) [person, muscles] → force f
to recover one's strength → reprendre des forces
with all one's strength → de toute ses forces

(= confidence, courage) → force f
Something gave me the strength to overcome the difficulty → Quelque chose m'a donné la force de surmonter cette difficulté.
strength of character → force f de caractère
strength of mind → force f mentale

[girder, knot, rope, cable, material] → solidité f

(= power, influence) [person, organization] → puissance f
The movement is gathering strength → Le mouvement gagne en puissance.
to go from strength to strength → aller de succès en succès
on the strength of sth (= because of) → en raison de qch

(= intensity) [feeling, opinion, belief] → force f

(= good quality) [person] → force f
Take into account your own strengths and weaknesses → Prenez en compte vos propres forces et faiblesses.

[currency, economy, industry] → force f

(= number) at full strength → au grand complet
below strength → en sous-effectif
to turn out in strength → arriver en force

[wind, sun, current, storm] → force f

(= concentration) [chemical solution] → titre m; [wine] → degré m d'alcool; [drug] → puissance f

[flavour, smell] → force f; [sound] → puissance f; [colour] → intensité f

strength

(lit, fig) → Stärke f; (of person, feelings) → Kraft f; (of table, bolt, nail, wall) → Stabilität f; (of material, character) → Stärke f, → Festigkeit f; (of conviction, shoes) → Festigkeit f; (of views) → Überzeugtheit f; (of imagination) → Lebhaftigkeit f; (of reason, argument, evidence) → Überzeugungskraft f; (of plea, protest) → Eindringlichkeit f; (of letter) → geharnischte or starke Ausdrucksweise; (of measure) → Drastik f; strength of character/will or mind → Charakter-/Willensstärke f; to increase in or gain strength → stärker werden; on the strength of something → aufgrund einer Sache (gen); he decided to be a writer on the strength of selling one short story → er beschloss, Schriftsteller zu werden, nachdem er eine einzige Kurzgeschichte verkauft hatte; his strength failed him → seine Kräfte versagten, ihn verließen die Kräfte; to be beyond somebody’s strength → über jds Kräfte (acc) → gehen; to save one’s strength → mit seinen Kräften haushalten or Haus halten; you don’t know your own strength! → du weißt gar nicht, wie stark du bist!; to argue from a position of strength → von einer starken Position aus argumentieren; to go from strength to strength → einen Erfolg nach dem anderen erzielen or haben; he was a great strength to me → er war mir eine große Stütze

(= health, of constitution) → Robustheit f, → Kräftigkeit f; (of eyes, heart) → Stärke f; the patient is recovering his strength → der Patient kommt wieder zu Kräften; when she has her strength back → wenn sie wieder bei Kräften ist

(of colour) → Kräftigkeit f, → Intensität f; (of acid, bleach) → Stärke f; (of diluted solution) → Konzentration f

(= numbers) → (An)zahl f; (Mil) → Stärke f; to be at full strength → vollzählig sein; to bring something up to strength → etw vollzählig machen; to be up to/below or under strength → (die) volle Stärke/nicht die volle Stärke haben; to turn out in strength → in großer Zahl kommen, zahlreich erscheinen; the police were there in strength → ein starkes Polizeiaufgebot war da

(of currency) → Stärke f; (of market prices) → Stabilität f; (of economy) → Gesundheit f

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

strength

[strɛŋθ] n

a. (gen) (fig) → forza; (of wall, nail, wood) → solidità; (of rope) → resistenza; (of chemical solution) → concentrazione f; (of wine) → gradazione f alcolica
you'll soon get your strength back → presto ti rimetterai in forze
his strength failed him → gli sono mancate le forze
strength of character/mind → forza di carattere/d'animo
strength of purpose → risolutezza
on the strength of → sulla base di, in virtù di
to go from strength to strength → andare di bene in meglio

b. (Mil) → effettivo
below/at full strength → con gli effettivi ridotti/al completo
to come in strength (fig) → venire in gran numero

strong

(stroŋ) adjective

1. firm, sound, or powerful, and therefore not easily broken, destroyed, attacked, defeated, resisted, or affected by weariness, illness etc. strong furniture; a strong castle; a strong wind; She's a strong swimmer; He has a very strong will/personality; He has never been very strong (= healthy); He is not strong enough to lift that heavy table.

2. very noticeable; very intense. a strong colour; a strong smell.

3. containing a large amount of the flavouring ingredient. strong tea.

4. (of a group, force etc) numbering a particular amount. An army 20,000 strong was advancing towards the town.

ˈstrongly adverb

strength (streŋθ) noun

1. the quality of being strong. He got his strength back slowly after his illness; I hadn't the strength to resist him.

2. the number of people etc in a force, organization etc, considered as an indication of its power or effectiveness. The force is below strength.

strengthen (ˈstreŋθən) verb

to make or become strong or stronger. He did exercises to strengthen his muscles; The wind strengthened.

ˈstrongbox noun

a safe or box for valuables.

strong drink

alcoholic liquors.

ˈstronghold noun

a fort, fortress or castle etc.

strong language

swearing or abuse.

ˌstrong-ˈminded adjective

having determination.

strong point

a quality, skill etc in which a person excels. Arithmetic isn't one of my strong points.

strongroom noun

a room specially constructed for keeping valuable articles, with thick walls and a heavy steel door etc.

on the strength of

relying on. On the strength of this offer of money, we plan to start building soon.

strength

→ قُوَّة síla styrke Kraft σθένος fuerza vahvuus force snaga forza 強さ 힘 kracht styrke siła força сила styrka ความเข้มแข็ง güç sức lực 实力

strength

n. fuerza, vigor, resistencia.

strength

n fuerza; the strength in your hand..la fuerza de su mano...to recover your strength..recuperar su(s) fuerza( s); double-strength de doble fuerza, de doble dosis; extra-strength de fuerza extra; physical — fuerza física