Etymology: Contraction of use and the suffix -er.
- One who uses or makes use of something, a consumer.
- A person who uses drugs, especially illegal drugs.
- (context, computing) A person who uses a computer or a computing network, especially a person who has received a user account.
- (pejorative) An exploiter, an abusive user (a person who uses something or someone unfairly, selfishly and/or unethically).
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