I. noun
1.
the acts or operations expected of a person or thing
fulfill one's function as a mother
Synonyms: business, duty, office, province, role
Related Word: affair, concern; job, task, work
2.
Synonyms: use 4, duty, goal, mark, object, objective, purpose, target
3.
Synonyms: power 3, faculty
Related Word: action, behavior, operation
II. verb
1.
Synonyms: act 4, officiate, serve
2.
Synonyms: act 5, behave, operate, perform, react, take, work
3.
to operate in the proper or expected manner
finally succeeded in getting the motor to function
Synonyms: act, go, run, work
Related Word: do, operate, perform