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1. The capacity to do work or cause physical change; energy, strength, or active power: the force of an explosion.
a. Power made operative against resistance; exertion: use force in driving a nail.
b. The use of physical power or violence to compel or restrain: a confession obtained by force.
a. Intellectual power or vigor, especially as conveyed in writing or speech.
b. Moral strength.
c. A capacity for affecting the mind or behavior; efficacy: the force of logical argumentation.
d. One that possesses such capacity: the forces of evil.
a. A body of persons or other resources organized or available for a certain purpose: a large labor force.
b. A person or group capable of influential action: a retired senator who is still a force in national politics.
a. Military strength.
b. A unit of a nation's military personnel, especially one deployed into combat: Our armed forces have at last engaged the enemy.
6. Physics
a. A vector quantity that tends to produce an acceleration of a body in the direction of its application. Newton's second law of motion states that a free body accelerates in the direction of the applied force and that its acceleration is directly proportional to the force and inversely proportional to its mass.
7. Baseball A force play.
tr.v. forced, forc·ing, forc·es
1. To compel through pressure or necessity: I forced myself to practice daily. He was forced to take a second job.
a. To gain by the use of force or coercion: force a confession.
b. To move or effect against resistance or inertia: forced my foot into the shoe.
c. To inflict or impose relentlessly: He forced his ideas upon the group.
a. To put undue strain on: She forced her voice despite being hoarse.
b. To increase or accelerate (a pace, for example) to the maximum.
c. To produce with effort and against one's will: force a laugh in spite of pain.
d. To use (language) with obvious lack of ease and naturalness.
a. To move, open, or clear by force: forced our way through the crowd.
b. To break down or open by force: force a lock.
5. To rape.
6. To induce change in (a complex system) by changing one of its parameters: greenhouse gases that force the earth's climate.
7. Botany To cause to grow or mature by artificially accelerating normal processes.
8. Baseball
a. To put (a runner) out on a force play.
b. To allow (a run) to be scored by walking a batter when the bases are loaded.
9. Games To cause an opponent to play (a particular card).
force (oneself) on/upon
To rape.
force (someone's) hand
To force to act or speak prematurely or unwillingly.
in force
1. In full strength; in large numbers: Demonstrators were out in force.
2. In effect; operative: a rule that is no longer in force.

[Middle English, from Old French, from Medieval Latin fortia, from neuter pl. of Latin fortis, strong; see bhergh- in Indo-European roots.]

force′a·ble adj.
forc′er n.
Synonyms: force, compel, coerce, oblige, obligate
These verbs mean to cause one to follow a prescribed or dictated course against one's will. Force, the most general, usually implies the exertion of physical power or the operation of circumstances that permit no options: The driver was forced from his car at gunpoint. A downturn in the market forced us to sell. Compel has a similar range but applies especially to the exertion of legal or moral authority: The official was compelled to testify under the committee's subpoena power. I felt compelled by my conscience to return the money. Coerce implies the application of pressure or threats in securing compliance: "The technology exists to reduce or eliminate these emissions, but industry will not apply it unless coerced" (Andrew Weil).
Oblige implies the operation of authority, necessity, or moral or ethical considerations: "Work consists of whatever a body is obliged to do" (Mark Twain).
Obligate applies when compliance is enforced by a legal contract or by the dictates of one's conscience or sense of propriety: I am obligated to repay the loan. See Also Synonyms at strength.
References in classic literature ?
Metivier, who came in the morning with his felicitations, considered it proper in his quality of doctor de forcer la consigne,* as he told Princess Mary, and went in to see the prince.
Applying electric current to the coils creates electromagnetic energy that reacts with the magnetic flux of the permanent magnets to pull the forcer plate along the bottom plate.
Face a un Cilic diminue physiquement et qui a du faire appel au soigneur pour un probleme au pied gauche, le Suisse n'a pas eu a forcer son talent.
the elevator's drive is based on a planar positioning system built of XY electromagnetic modules of the forcer separated by an air cushion from an immobile stator;
Ce que j'ai appris, c'est que vous ne pouvez pas forcer quelqu'un a accepter des excuses, a explique Armstrong, sur la radio irlandaise Newstalk, que ce soient les Andreu, les Lemond ou Emma O'Reilly (son ancienne soigneuse).
Cette decision vient suite au fait comme quoi Apple avait passe un accord avec des maisons d'editions telles Hachette, HarperCollins, ainsi que les editions Macmilian, Penguin et Simon & Schuster pour forcer Amazon a revoir ses tarifs.
A design of two parts: a tubular stainless steel shaft, and a noncontact forcer.
Forcer further intensified their military procedures across the Hebron area, setting up military checkpoints at the entrances of Joret Bahlas, Halhoul, and Sair areas, where they proceeded to stop and inspect the identity cards of passing Palestinian registered vehicles.
Devine, 49, Lee Ryan, 31, Alan Forcer, 36, and Robert Elsdon, 45, were arrested and jailed for between five and seven years after pleading guilty to conspiracy to supply cocaine.
Remember, the taller your rhubarb forcer, the longer the stems you will get.
Dans des declarations au journal [beaucoup moins que] Al Qods Press [beaucoup plus grand que], il a affirme que s'il s'agit de forcer le gouvernement a abdiquer sous l'effet de la greve generale, des attaques contre le siege du gouvernorat et des incendies des locaux d'Ennahdha et du CPR, ces actes ont tous les contours d'une erreur, ajoutant que les tentatives de renverser le gouvernement le sont tout autant.
Quelque 150 migrants en situation irreguliere ont tente tot ce matin du 5 novembre de forcer le passage vers le preside occupe de Melilia, en escaladant la cloture grillagee au niveau du lieu-dit "ROSTO GORDO" relevant de la commune rurale de Beni Chiker, apprend-on aupres des autorites locales de Nador.