Meaning of “guarantee” - Learner’s Dictionary


verb [ T ] uk us /ˌɡærənˈtiː/ (present participle guaranteeing, past tense and past participle guaranteed)

B2 to promise that something is true or will happen:

Every child is guaranteed a place at a local school.
[ + (that) ] We can't guarantee that it will arrive in time.

If a company guarantees its products, it makes a written promise to repair them or give you a new one if they have a fault:

The repair is guaranteed for 6 months.

(Definition of “guarantee verb” from the Cambridge Learner’s Dictionary © Cambridge University Press)