Meaning of READER in English

n.1 a person who reads or is reading.

2 a book of extracts for learning, esp. a language.

3 a device for producing an image that can be read from microfilm etc.

4 Brit. a university lecturer of the highest grade below professor.

5 a publisher's employee who reports on submitted manuscripts.

6 a printer's proof-corrector.

7 a person appointed to read aloud, esp. parts of a service in a church.

8 a person entitled to use a particular library.

Etymology: OE (as READ)

Oxford English vocab.      Оксфордский английский словарь.