B2verb2K

Guarantee

UK /["/ˌɡærənˈtiː/","/ˌɡærənˈtiːz/","/ˌɡærənˈtiːd/","/ˌɡærənˈtiːɪŋ/"]/US /["/ˌɡærənˈtiː/","/ˌɡærənˈtiːz/","/ˌɡærənˈtiːd/","/ˌɡærənˈtiːɪŋ/"]/

Definition

to promise to do something; to promise something will happen

In simple words: A promise that something will happen or be done.

Examples

I can guarantee that you will enjoy this movie.
The company guarantees a full refund within 30 days of purchase.
The warranty will guarantee you peace of mind for three years.
They guarantee customer satisfaction as their top priority.
No one can guarantee the outcome of the election.
The bank cannot guarantee that loans will be approved.
Please sign the document to guarantee your commitment.
He offered to guarantee her safety during the trip.

Usage notes

Use 'guarantee' when you want to express certainty about an outcome. It's suitable for both written and spoken English, but avoid in casual conversations where simpler words like 'promise' may suffice.

Grammar pattern

guarantee + object

Memory hint

Think of 'garant' as a guardian that ensures things are safe and sound.

Collocations

absolutely
personally
constitutionally
be able to
can
be fully guaranteed
absolutely
almost
practically

Synonyms

promise
warranty
pledge
assurance
commitment

Antonyms

doubt
uncertainty
dispute

Common mistakes

Confused with 'ensure' — 'guarantee' implies a stronger promise.
Incorrectly using 'guarantee' without a direct object — always specify what is guaranteed.
Mixing up 'guaranteed' as an adjective instead of a past participle.