Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “guarantee”

guarantee

noun [C/U]  /ˌɡær·ənˈti, ˈɡær·ənˌti/ us  
a promise that something will be done or will happen, esp. a written promise by a company to repair or change a product that develops a fault within a particular period of time: [C] The vacuum cleaner comes with a two-year guarantee. Guarantee is also the state of being certain of a particular result: [U] No matter how many stars you have in the show, there’s no guarantee (= it is not certain that) it will be a success.

guarantee

verb [T]  /ˌɡær·ənˈti, ˈɡær·ənˌti/ us  
If you guarantee something, you promise that a particular thing will happen or exist: [+ (that) clause] I guarantee (you) that our team will play hard and have a shot at winning the championship. If something is guaranteed to happen or have a particular result, it is certain that it will happen or have that result: [+ to infinitive] Eating all that rich food is guaranteed to give you indigestion.
(Definition of guarantee from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of guarantee?
Browse related topics

You are looking at an entry to do with Certainty, but you might be interested in these topics from the Chance and possibility topic area:

Add Cambridge dictionaries to your browser to your website

Definitions of “guarantee” in other dictionaries

Word of the Day

debut

the occasion when someone performs or presents something to the public for the first time

Word of the Day

Come on – you can do it! Phrasal verbs with ‘come’.

by Liz Walter​,
November 19, 2014
As part of an occasional series on the tricky subject of phrasal verbs, this blog looks at ones formed with the verb ‘come’. If you are reading this blog, I’m sure you already know come from, as it is one of the first things you learn in class: I come from Scotland/Spain.

Read More 

ped-text verb

November 24, 2014
to text someone while walking I’m ped-texting, I’m looking down at my phone, 75 percent of the time.

Read More