- The definition of sure is someone or something which is certain, trustworthy or always effective.
An example of sure is someone who's positive they're getting a job for which they interviewed.
sure definition by Webster's New World
- Obsolete secure or safe
- that will not fail; always effective: a sure method
- that can be relied upon; trustworthy: a sure friend
- that cannot be doubted, questioned, or disputed; absolutely true; certain
- having or showing no doubt; positive; confident: to be sure of one's facts
- that can be counted on to be or happen: a sure defeat
- bound or destined to do, experience, or be something specified: sure to be elected
- never missing; unerring: a sure aim
Origin: Old French seur ; from Classical Latin securus: see secure
- sureness noun
sure definition by American Heritage Dictionary
adjective sur·er, sur·est
- Impossible to doubt or dispute; certain.
- Not hesitating or wavering; firm: sure convictions.
- Confident, as of something awaited or expected: sure of ultimate victory.
- a. Bound to come about or happen; inevitable: sure defeat.b. Having one's course directed; destined or bound: sure to succeed.
- Certain not to miss or err; steady: a sure hand on the throttle.
- a. Worthy of being trusted or depended on; reliable.b. Free from or marked by freedom from doubt: sure of her friends.
- Careful to do something: asked me to be sure to turn off the stove.
- Obsolete Free from harm or danger; safe.
Origin: Middle English, from Old French, safe, from Latin sēcūrus; see secure.
- sureˈness noun
sure - Phrases/Idioms
to be sure
to be sure