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"Can I borrow your green sweater?" "Sure, no problem."
It sure looks like it's going to snow.
I sure as hell didn't spend all that money for a car that doesn't run.
Sure, it's a good deal. I just don't think I can afford it.
I will call you tomorrow for sure.
"Are you going on Friday?" "I don't know for sure."
Ashe was an incredible tennis player, that's for sure.
I had a feeling we'd get lost, and sure enough, we did.
This is the American English definition of sure. View British English definition of sure.