Work out

1. To exercise.

The man spends most weekends working out at the health club.

2. To solve a problem.

I could not work out the math problem on the final examination.

3. To accomplish something, to arrange something.

Recently, we worked out a system for calculating our expenses at work.

4. (for the best) To end successfully, to prove effective or satisfactory.

I hope that everything will work out for my friend when she moves to London next week.