Another time; once more.

Over and above a factor of one.

Used metalinguistically, with the repetition being in the discussion, or in the linguistic or pragmatic context of the discussion, rather than in the subject of discussion.

"Great, thanks again!"

Back in the reverse direction, or to an original starting point.

"Bring us word again."

Back (to a former place or state).

"The South will rise again."

In return, as a reciprocal action; back.

In any other place.

On the other hand.

Moreover; besides; further.

(obsolete or dialectal) Against.