sure thing
noun
Definitions
That which is certain.
Example: That horse is a sure thing in the race at 3:30.
Synonyms:certaintysafe bet
interjection
Definitions
A polite reply to thank you.
Example: "Thanks a lot for your help." / "Sure thing!"
An affirmative reply; yes; certainly.
Example: "Can you finish by tomorrow?" / "Sure thing!"