sure

(adjective, adverb, interjection)

adjective

1. having or feeling no doubt or uncertainty; confident and assured

- was sure (or certain) she had seen it

- was very sure in his beliefs

- sure of her friends

Similar word(s): confident, convinced, positive, certain

2. exercising or taking care great enough to bring assurance

- be sure to lock the doors

Similar word(s): careful, certain

3. certain to occur; destined or inevitable

- sudden but sure regret

- he is sure to win

Similar word(s): bound, destined, doomed, fated, foreordained, predestinate, predestined, predictable, certain

4. physically secure or dependable

- a sure footing

- was on sure ground

Similar word(s): secure

5. reliable in operation or effect

- a sure way to distinguish the two

- wood dust is a sure sign of termites

Similar word(s): dependable, reliable, certain

6. (of persons) worthy of trust or confidence

- a sure (or trusted) friend

Similar word(s): trustworthy, trusty, trusted

7. infallible or unfailing

- a sure (or true) sign of one's commitment

Similar word(s): true

8. certain not to fail

- a sure hand on the throttle

Similar word(s): steady

9. impossible to doubt or dispute

- indisputable (or sure) proof

Similar word(s): certain, indisputable

Sentences with sure as an adjective:

- This investment is a sure thing.

- He was sure she was lying.

- Be sure to lock the door when you leave.

adverb

1. definitely or positively (`sure' is sometimes used informally for `surely')

- the results are surely encouraging

- it's going to be a good day for sure

- they thought he had been killed sure enough

Similar word(s): certainly, surely

Sentences with sure as an adverb:

- Sure he's coming! Why wouldn't he?

- "Did you kill that bear yourself? ―"I sure did!"

interjection

1. Yes. (Expresses noncommittal agreement or consent.)

- "Do you want me to put this in the garage?" "Sure, go ahead."

2. Yes; of course.

- "Could you tell me where the washrooms are?" "Sure, they're in the corner over there."