sure
Translation
sure, certain, confident
Examples
Are you sure about that?
Are you sure about that?
He is sure to win the race.
He is sure to win the race.
Sure, I can help you.
Sure, I can help you.
Grammar Patterns
sure ((about sth.)) certain about (sth.) Are you sure about the time?
sure ((to-inf)) certain to do (sth.) She is sure to arrive soon.
sure ((that ...)) certain that (sth.) is true I'm sure that he is right.
Similar Words
Synonyms: certain, confident, positive; Antonyms: unsure, doubtful
Etymology
From Old French 'seur' (safe), from Latin 'securus' (free from care).
Memory Tips
Think of the word 'secure'. When you feel secure, you are sure of things.