A coeditor is someone who shares the responsibility of editing a piece of literary work with another person. Synonyms for the word "coeditor" include collaborator, joint editor, partner editor, second editor, and associate editor. A collaborator works with another person or group of people to achieve a common goal, while a joint editor shares the responsibility of editing a piece of literary work with another person. A partner editor is someone with whom one is in a relationship of mutual support, while a second editor assists the primary editor in the editing task. An associate editor works under the supervision of the editor-in-chief and assists in the management of editorial content. All these synonyms signify various levels of shared responsibilities in the editing of a piece of literary work.