Pronunciation: (shoor, shûr), [key]
—adj., sur•er, sur•est,
1. free from doubt as to the reliability, character, action, etc., of something: to be sure of one's data.
2. confident, as of something expected: sure of success.
3. convinced, fully persuaded, or positive: to be sure of a person's guilt.
4. assured or certain beyond question: a sure victory.
5. worthy of confidence; reliable; stable: a sure messenger.
6. unfailing; never disappointing expectations: a sure cure.
7. unerring; never missing, slipping, etc.: a sure aim.
8. admitting of no doubt or question: sure proof.
9. destined; bound inevitably; certain: sure death.
10. Obs.secure; safe.
11. be sure, to take care (to be or do as specified); be certain: Be sure to close the windows.
12. for sure, as a certainty; surely: It's going to be a good day, for sure.
13. make sure, to be or become absolutely certain: I'm calling to make sure that you remember to come.
14. sure enough, Informal.as might have been supposed; actually; certainly: Sure enough, the picnic was rained out.
15. to be sure,
a. without doubt; surely; certainly.
b. admittedly: She sings well, to be sure, but she can't act.
Informal.certainly; surely: It sure is cold out. Sure, I'll come.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.