editor /ˈedɪtər/ noun [C]
› a person who is in charge of a newspaper, magazine, etc. and decides what will be published in it: He is the editor of The Wall Street Journal.
› a person who makes changes to a text, film, etc. before it is printed or published: She is a freelance writer, reviewer, and editor.
› IT a piece of software for editing text on a computer: Do you know how to use an HTML editor?