Definitions

1. noun

an assurance that something is of good quality or will meet a required standard

“The manufacturer provides a five-year guarantee for the parts of the car.”

2. verb

to provide a guarantee, or to make something certain or secure

“She guaranteed that the project would be completed on time.”

3. noun

a condition or agreement that must be met before something can happen

“The deal was contingent on the guarantee of a loan to finance the project.”

4. verb

to make or become certain or inevitable

“The weather forecast guaranteed a storm for the next day.”