Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “assure”


verb [T] (PROTECT)    /əˈʃɔːr/ US  /-ˈʃʊr/ UK
(of an organization) to promise to pay an amount of money to a person or their family if they become ill, get injured, or die, in return for small regular paymentsInsurance
(Definition of assure verb (PROTECT) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of assure

Definitions of “assure” in other dictionaries

Word of the Day

pump iron

to lift heavy weights for exercise

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More