a person having managerial and sometimes policy-making responsibility for the editorial part of a publishing firm or of a newspaper, magazine, or other publication.

the supervisor or conductor of a department of a newspaper, magazine, etc.

the sports editor of a newspaper.

a person who edits material for publication, films, etc.

a device for editing film or magnetic tape.

noun

reviser , copyreader , rewriter , proofreader , copyholder , deskman , newspaperman , newspaperwoman , rewrite man , rewrite woman , blue-penciler