Meaning of USER in English

n.1 a person who uses (esp. a particular commodity or service, or a computer).

2 colloq. a drug addict.

3 Law the continued use or enjoyment of a right etc.

Phrases and idioms:

right of user Law

1. a right to use.

2 a presumptive right arising from the user. user-friendly esp. Computing (of a machine or system) designed to be easy to use.

Oxford English vocab.      Оксфордский английский словарь.