find the solution to (a problem or question) or understand the meaning of
Did you solve the problem?. Work out your problems with the boss. This unpleasant situation isn't going to work itself out. Did you get it?. Did you get my meaning?. He could not work the math problem.
source: WordNet 3.0
find the solution
Solve an equation. Solve for x.
source: WordNet 3.0
settle, as of a debt
Clear a debt. Solve an old debt.
source: WordNet 3.0
To explain; to resolve; to unfold; to clear up (what is obscure or difficult to be understood); to work out to a result or conclusion; as, to solve a doubt; to solve difficulties; to solve a problem.
