guarantee

Meaning of guarantee in English

Noun

1. a promise that something will happen or will be done

2. a formal promise of a specified quality and durability of a product

This watch is still under guarantee.

3. a written promise from a company to repair or replace a product if it proves to be faulty within a particular period of time; warranty

Verb

1. promise that something will happen or will be done

I'll guarantee it.

2. provide a written promise that the product will be repaired or replaced within a particular period of time, if anything wrong with it

We guarantee the quality.