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The word assure and its family (assurance, assurances, assured, assuredly, assures, assuring) are included in the Academic Word List by Dr. Averil Coxhead, which contains the 570 most frequent word families used in academic texts from a variety of subject areas, of interest for students that learn the words most needed to study at tertiary institutions.

Definition of the verb assure

What does assure mean as a doing word?

Assure is one of the top 1000 most common verbs in the English language.

verb - inflections: assured | assuring | assures

  1. make certain of
    • syntax:
      Syntactic formulaExample for the syntactic formula
      [Cause] [Verb] [Beneficiary] [Theme, object control with infinitive]The circumstances ensured that he would arrive in time
      [Cause] [Verb] [Beneficiary] [Theme, not sentential clause]Our exertions ensured us a good outcome
      [Cause] [Verb] [Theme]Our exertions ensured a good outcome
      [Cause] [Verb] [Theme] for [Beneficiary]The circumstances ensured a good outcome for him

      Ensure Verbs (with the same syntax): ascertain, ensure, guarantee, insure, secure.

    • lexical domain: Communication - verbs of telling, asking, ordering, singing
    • synonyms of assure: ensure / guarantee / insure / secure
    • more specific words:
      • doom = make certain of the failure or destruction of
      • make = assure the success of
  2. inform positively and with certainty and confidence
  3. assure somebody of the truth of something with the intention of giving the listener confidence
    • example: I assured him that traveling to Cambodia was safe
    • lexical domain: Communication - verbs of telling, asking, ordering, singing
    • more generic word: persuade = cause somebody to adopt a certain position, belief, or course of action
    • more specific word: reassure = give or restore confidence in
  4. be careful or certain to do something; make certain of something
    • lexical domain: Cognition - verbs of thinking, judging, analyzing, doubting
    • synonyms of assure: ascertain / check / control / ensure / insure / see / see to it
    • more generic word: verify = confirm the truth of
    • more specific words:
      • proofread / proof = read for errors
      • control = verify by using a duplicate register for comparison
      • double-check = check once more to be absolutely sure
      • cross-check = check out conflicting sources
      • cinch = make sure of
      • card = ask someone for identification to determine whether he or she is old enough to consume liquor
      • spot-check = pick out random samples for examination in order to ensure high quality
      • cover = maintain a check on
  5. cause to feel sure; give reassurance to
  6. make a promise or commitment
    • syntax:
      Syntactic formulaExample for the syntactic formula
      [Agent - being or organization] [Verb] [Recipient] [Topic]I promised him the house
      [Agent - being or organization] [Verb] [Recipient] [Topic, that-complement clause]I promised him that he would arrive in time
      [Agent - being or organization] [Verb] [Topic, possessive with -ing]I promised his getting the position
      [Agent - being or organization] [Verb] [Topic, that-complement clause]I promised that I would come | They confessed that they had stolen
      [Agent - being or organization] [Verb] to [Recipient] [Topic, that-complement clause]I promised to him that he would arrive in time

      Verbs of Communication (with the same syntax): ascertain, guarantee, promise.

    • lexical domain: Communication - verbs of telling, asking, ordering, singing
    • synonym of assure: promise
    • more generic word: declare = state emphatically and authoritatively
    • more specific terms:

Alternative definition of the verb assure


  1. To make sure and secure.
  2. [ditransitive] To give (someone) confidence in the trustworthiness of (something).
  3. [obsolete] To guarantee, promise (to do something).
  4. To reassure.

Printed dictionaries and other books with definitions for assure

Click on a title to look inside that book (if available):

Google previewThe Cat (1881)

An Introduction to the Study of Backboned Animals, Especially Mammals by St. George Jackson Mivart

& Sylvian Assure (the Sylvian Assure is the suleus wliieh passes backward and somewhat upwards from the spot to which the letter has been made to point, a. Superior external gyrus, m ...

Google previewEureka! (2011)

Discover and Enjoy the Hidden Power of the English Language by Walker Royce

Assure is a verb that means to guarantee an outcome. Ensure is a verb that means to make certain. Insure means to guarantee against loss (like insurance). Biannual means every two years. Semi-annual means twice per year. Capital is a city ...

Google previewTheory for Performance Studies (2008)

A Student's Guide by Philip Auslander

Overtly fictional environments like eyland serve to assure is that the rest of the country is real when it is, in pure simulation. mulation commonly refers to something fake or counterfeit, unreal or thentic. But Baudrillard does not simply contrast ...

Google previewLogicism, Intuitionism, and Formalism (2008)

What Has Become of Them? by Sten Lindström, Erik Palmgren, Krister Segerberg, Viggo Stoltenberg-Hansen

If we restrict ourselves to first-order axiomatizations, then G ̈odel's completeness theorem does assure is that consistency implies existence. The theorem is that if a first-order axiomatization is consistent, then it has a model: there is a system ...

Google previewFowler's Concise Dictionary of Modern English Usage (2016)

by Jeremy Butterfield

Assure has never found public acceptance in the meaning of 'to secure the future payment of an amount with insurance'. It is used by some insurance offices and agents, especially when death is the event insured against (the life assured).

Google previewA Dictionary of Modern English Usage (2010)

The Classic First Edition by H. W. Fowler

Assure for ensure (make certain the occurrence &c. of) is now rare (That will ensure, rarely assure, your success). assuredly. Four syllables; see -EDLY. asylum. PI. -ms ; see -ton. asyndeton. See TECHNICAL TERMS. PI. -ta, -ns ; see - ON 1.

Google previewThe Encyclopedia of American Law (2009)

by David Andrew Schultz

Beginning with the Bail Reform Act of 1966, Congress passed laws that provided that conditions of release could be imposed if a judge determined that they were necessary to reasonably assure the appearance of the arrestee at trial. Later ...

Google previewAdvanced Learners' Dictionary (1998)

by Martin H. Manser, Turton, Nigel D. Turton

assure (a'/us, a'/a:) vb 1 cause to feel confident.

Online dictionaries and encyclopedias with entries for assure

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Usage statistics about assure

The following statistics are based on the British National Corpus, so they are representative for the British English from the later part of the 20th century, both spoken and written.

Distribution of usage frequency for the most common synonyms of the verb assure:


Photo about assure


Philippe assure

Photo credit: delaere

Video language resources about assure

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See also the pronunciation examples of assure!

Quotes about assure

Do not worry about your difficulties in Mathematics. I can assure you mine are still greater. (Albert Einstein)
more quotes about assure...

Scrabble value of A1S1S1U1R1E1

The value of this 6-letter word is 6 points. It is included in the first and second editions of the Official Scrabble Players Dictionary.

Anagrams of ASSURE

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See also the blanagrams of assure!

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