read‧er S3 W2 [countable]
someone who reads books, or who reads in a particular way:
somebody who reads
The book will appeal to young readers.
I've always been an avid reader (=someone who reads a lot).
He's a great reader of crime fiction.
someone who reads a particular newspaper or magazine regularly:
of a newspaper/magazineTCN
The newspaper gradually lost readers during the 1980s.
an easy book for children who are learning to read or for people who are learning a foreign language
an important teacher in a British university
a Reader in Sociology at Bristol University