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Related to ensure: insure


tr.v. en·sured, en·sur·ing, en·sures
To make sure or certain; insure: Our precautions ensured our safety. See Usage Note at assure.

[Middle English ensuren, from Anglo-Norman enseurer : Old French en-, causative pref.; see en-1 + Old French seur, secure, variant of sur; see sure.]


(ɛnˈʃʊə; -ˈʃɔː) or


vb (tr)
1. (may take a clause as object) to make certain or sure; guarantee: this victory will ensure his happiness.
2. to make safe or secure; protect
enˈsurer n


(ɛnˈʃʊər, -ˈʃɜr)

v.t. -sured, -sur•ing.
1. to secure or guarantee: This letter will ensure you a hearing.
2. to make sure or certain.
3. to make secure or safe, as from harm.
[1350–1400; Middle English < Anglo-French enseurer. See en-1, sure]
en•sur′er, n.


1. 'assure'

If you assure someone that something is true or will happen, you tell them that it is definitely true or will definitely happen, often in order to make them less worried.

"I can assure you that neither of our two goalkeepers will be leaving," O'Leary said.
The government assured the public that there would be no increase in taxes.
2. 'ensure' and 'insure'

In British English, to ensure that something happens means to make certain that it happens.

His reputation was enough to ensure that he was always welcome.

In American English, this word is usually spelled insure.

I shall try to insure that your stay is a pleasant one.
3. 'insure'

Insure has another meaning. In both British and American English, if you insure your property, you pay money to a company so that if the property is lost, stolen, or damaged, the company will pay you a sum of money. In this meaning, the spelling is always insure, not 'ensure'.

Insure your baggage before you leave home.


Past participle: ensured
Gerund: ensuring

I ensure
you ensure
he/she/it ensures
we ensure
you ensure
they ensure
I ensured
you ensured
he/she/it ensured
we ensured
you ensured
they ensured
Present Continuous
I am ensuring
you are ensuring
he/she/it is ensuring
we are ensuring
you are ensuring
they are ensuring
Present Perfect
I have ensured
you have ensured
he/she/it has ensured
we have ensured
you have ensured
they have ensured
Past Continuous
I was ensuring
you were ensuring
he/she/it was ensuring
we were ensuring
you were ensuring
they were ensuring
Past Perfect
I had ensured
you had ensured
he/she/it had ensured
we had ensured
you had ensured
they had ensured
I will ensure
you will ensure
he/she/it will ensure
we will ensure
you will ensure
they will ensure
Future Perfect
I will have ensured
you will have ensured
he/she/it will have ensured
we will have ensured
you will have ensured
they will have ensured
Future Continuous
I will be ensuring
you will be ensuring
he/she/it will be ensuring
we will be ensuring
you will be ensuring
they will be ensuring
Present Perfect Continuous
I have been ensuring
you have been ensuring
he/she/it has been ensuring
we have been ensuring
you have been ensuring
they have been ensuring
Future Perfect Continuous
I will have been ensuring
you will have been ensuring
he/she/it will have been ensuring
we will have been ensuring
you will have been ensuring
they will have been ensuring
Past Perfect Continuous
I had been ensuring
you had been ensuring
he/she/it had been ensuring
we had been ensuring
you had been ensuring
they had been ensuring
I would ensure
you would ensure
he/she/it would ensure
we would ensure
you would ensure
they would ensure
Past Conditional
I would have ensured
you would have ensured
he/she/it would have ensured
we would have ensured
you would have ensured
they would have ensured
ThesaurusAntonymsRelated WordsSynonymsLegend:
Verb1.ensure - make certain ofensure - make certain of; "This nest egg will ensure a nice retirement for us"; "Preparation will guarantee success!"
guarantee, vouch - give surety or assume responsibility; "I vouch for the quality of my products"
doom - make certain of the failure or destruction of; "This decision will doom me to lose my position"
make - assure the success of; "A good review by this critic will make your play!"
2.ensure - be careful or certain to do something; make certain of something; "He verified that the valves were closed"; "See that the curtains are closed"; "control the quality of the product"
proofread, proof - read for errors; "I should proofread my manuscripts"
check off, tick off, mark off, tick, check, mark - put a check mark on or near or next to; "Please check each name on the list"; "tick off the items"; "mark off the units"
control - verify by using a duplicate register for comparison; "control an account"
check - verify by consulting a source or authority; "check the spelling of this word"; "check your facts"
double-check - check once more to be absolutely sure
cross-check - check out conflicting sources; crosscheck facts, for example
cinch - make sure of
card - ask someone for identification to determine whether he or she is old enough to consume liquor; "I was carded when I tried to buy a beer!"
spot-check - pick out random samples for examination in order to ensure high quality
verify - confirm the truth of; "Please verify that the doors are closed"; "verify a claim"
ascertain, find out, learn, watch, determine, see, check - find out, learn, or determine with certainty, usually by making an inquiry or other effort; "I want to see whether she speaks French"; "See whether it works"; "find out if he speaks Russian"; "Check whether the train leaves on time"
cover - maintain a check on; especially by patrolling; "The second officer covered the top floor"
verify, control - check or regulate (a scientific experiment) by conducting a parallel experiment or comparing with another standard; "Are you controlling for the temperature?"


1. make certain, guarantee, secure, make sure, confirm, warrant, certify Steps must be taken to ensure this never happens again.
2. protect, defend, secure, safeguard, guard, make safe The plan is aimed at ensuring the future of freshwater fish species.


To render certain:
Informal: cinch.
يَتَأَكَّدُيَضْمَن، يُؤَمِّن
sikresørge for
tryggja, ganga úr skugga um
bảo đảm


[ɪnˈʃʊəʳ] VTasegurar (that que)


[ɪnˈʃʊər] vt
[+ peace, stability, safety, security, survival] → assurer, garantir; [+ victory, success] → assurer
to ensure (that) ... (= make it certain) [thing] → garantir que ...
an attempt to ensure that there would not be a third attack → une tentative de garantir qu'il n'y aurait pas de troisième attaque
(= make sure that) [person] to ensure (that) ... → s'assurer que ...
You should ensure you do not miss the deadline → Assurez-vous de ne pas dépasser la date butoir.


vtsicherstellen; (= secure)sichern; will you ensure that I get a seat?sorgen Sie dafür, dass ich einen Platz bekomme?


[ɪnˈʃʊəʳ] vtgarantire, assicurare
to ensure that ... → assicurarsi che...


(inˈʃuə) verb
to make sure. Ensure that your television set is switched off at night.


يَتَأَكَّدُ zajistit sikre sicherstellen διασφαλίζω asegurar, asegurarse varmistaa s’assurer que osigurati assicurare 保証する 보장하다 ervoor zorgen sørge for zapewnić assegurar гарантировать garantera ทำให้แน่ใจว่า garantiye almak bảo đảm 保证
References in classic literature ?
Elton was to take the drawing to London, chuse the frame, and give the directions; and Emma thought she could so pack it as to ensure its safety without much incommoding him, while he seemed mostly fearful of not being incommoded enough.
I shall devote myself for a time to the examination of the Roman Catholic dogmas, and to a careful study of the workings of their system: if I find it to be, as I half suspect it is, the one best calculated to ensure the doing of all things decently and in order, I shall embrace the tenets of Rome and probably take the veil.
Heathcliff received no flogging, but he was told that the first word he spoke to Miss Catherine should ensure a dismissal; and Mrs.
Isaac's own share in this transaction was considerable, and he well knew that the Prince's eager desire to bring it to a conclusion would ensure him his protection in the dilemma in which he stood.
But by other persons it was so much admired that Trefusis hoped it would ensure the prosperity of its designer.
The three fellows still abroad upon the island did not greatly trouble us; a single sentry on the shoulder of the hill was sufficient to ensure us against any sudden onslaught, and we thought, besides, they had had more than enough of fighting.
In truth it was a talisman which the Queen of China had given her daughter, telling her it would ensure her happiness as long as she carried it about her.
Then he gave him a dose of opium to ensure a calm sleep.
You have shown yourself a mighty fighter, and we do not wish to manacle you, so we hold you both in the easiest way that will yet ensure security.
He would let her reach Korak before he charged--that would ensure that she had no chance of escape.
He explained to me that posts were few and uncertain, and that my writing now would ensure ease of mind to my friends.
It seemed certain that Fogg would not stop at Yokohama, but would at once take the boat for San Francisco; and the vast extent of America would ensure him impunity and safety.