Sure

1. Certainly knowing and believing; confident beyond doubt; implicity trusting; unquestioning; positive.
2. Fit or worthy to be depended on; certain not to fail or disappoint expectation; unfailing; strong; permanent; enduring.
3. In a sure manner; safely; certainly.
4. Betrothed; engaged to marry.
5. Certain to find or retain; as, to be sure of game; to be sure of success; to be sure of life or health.
6. Free from danger; safe; secure.