1. one that uses: a user of public transportation.
2. law the exercise or enjoyment of a right or property.
3. one who uses addictive drugs.

1. one who uses or makes use of something, a consumer.
2. A person who uses drugs, especially illegal drugs.
3. A person who uses a computer or a computing network, especially a person who has received a user account.
4. an exploiter, an abusive user (a person who uses something or someone unfairly, selfishly and/or unethically).

1. one who uses.
2. enjoyment of property; use.

1. one who or that which uses.
2. in law, the using or exercise, as of a right; continued use or enjoyment; the acting in a manner which implies a claim of right so to do. see non-user.
3. the presumptive right arising from continued user.

1. a person who makes use of a thing; someone who uses or employs something
2. a person who uses something or someone selfishly or unethically
3. a person who takes drugs