Verb

1. use up, consume fully
2. put into service; make work or employ (something) for a particular purpose or for its inherent or natural purpose
3. take or consume (regularly or habitually)
4. habitually do something (use only in the past tense)
5. avail oneself to
6. seek or achieve an end by using to one's advantage

Noun

1. exerting shrewd or devious influence especially for one's own advantage
2. a pattern of behavior acquired through frequent repetition
3. the act of using
4. what something is used for
5. a particular service
6. (law) the exercise of the legal right to enjoy the benefits of owning property
7. (economics) the utilization of economic goods to satisfy needs or in manufacturing