undecided; wavering in one's opinion
Used other than figuratively or idiomatically: see on, the, fence.
Without doubt, certainly.
Yes, expressing noncommittal agreement or consent.
Yes; of course.
You're welcome; polite response to being thanked.
Physically secure and certain, non-failing, reliable.
Certain to act or be a specified way.
Certain in one's knowledge or belief.