IPA: //koʊˈɛdɪtər//
KK: /koˈɛdɪtər/
A person who shares the editing responsibilities of a work or project with others.
The coeditor helped finalize the manuscript before publication.
Coeditor → It is formed from "co-" (meaning together) and "editor" (from Latin "editus", meaning to lead out or bring forth). The word "coeditor" refers to a person who works together with another editor in the editing process.
Think of two people working "together" ('co-') to "bring forth" ('editor') content — that's what a coeditor does.