To take place or occur.
To bring about or cause to happen by work or effort.
To make sense of.
To strengthen a part one’s body by exercise.
To earn a wage working away from one's farm.
To succeed; to result in a satisfactory situation.
To conclude with the correct solution.
To remove all the mineral that can be profitably exploited.
To smooth or perfect.
To exercise, especially by lifting weights.
Used other than figuratively or idiomatically: see work, out.
To calculate.