activity directed toward making or doing something
be employed
a product produced or accomplished through the effort or activity or agency of a person or thing
exert oneself by doing mental or physical work for a purpose or out of necessity
the occupation for which you are paid
have an effect or outcome; often the one desired or expected
perform as expected when applied
applying the mind to learning and understanding a subject (especially by reading)
shape, form, or improve a material
give a workout to