adjective
- certain or confident about something
- definitely true or will definitely happen
- reliable or dependable
adverb
- certainly or definitely
Usage: informal
Examples
- I’m sure that I locked the door before leaving.
- Are you sure you want to quit your job?
- It’s sure to rain tomorrow according to the forecast.
- She has a sure way of making everyone feel welcome.
- That investment is a sure thing.
- Sure, I’ll help you with your homework.
- He sure knows how to cook!