user
nounUK /ˈjuːzə/
US /ˈjuːzər/
A person who uses something.
She is a user of the new library app.
OTHER MEANINGS
2. A person who takes illegal drugs.
The clinic helps drug users recover.
3. A person who takes advantage of others.
He felt like a user after borrowing money and never paying it back.
4. In computing, a person who operates a computer or online account.
Each user must log in with a password.