work out
To calculate.
To make sense of.
To decide.
To bring about or cause to happen by work or effort.
To resolve; to find a solution for.
To develop or devise in detail; to elaborate.
To smooth or perfect.
To conclude with the correct solution.
To succeed; to result in a satisfactory situation.
(exercise) To exercise, especially by lifting weights.
To strengthen a part of one’s body by exercise.
(US) To earn a wage working away from one's farm.
(out)
(mining) To remove all the mineral that can be profitably exploited.