coauthor

[ koh-aw-ther, koh-aw- ]
/ koʊˈɔ θər, ˈkoʊˌɔ- /

noun

one of two or more joint authors.

verb (used with object)

to write in joint authorship.

Origin of coauthor

First recorded in 1860–65; co- + author
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for coauthor

British Dictionary definitions for coauthor

coauthor
/ (kəʊˈɔːθə) /

noun

a person who shares the writing of a book, article, etc, with another

verb

(tr) to be the joint author of (a book, article, etc)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012