coauthor

noun

co·​au·​thor (ˌ)kō-ˈȯ-thər 

variants or co-author

plural coauthors or co-authors

: one who collaborates with another person in authoring a literary or dramatic work, a document, a legislative bill, etc.

coauthors of many books and plays

the coauthors of new legislation

coauthor transitive verb

or co-author

coauthored or co-authored; coauthoring or co-authoring

… he coauthored legislation … requiring the publication on the Internet of the cost of all federal contracts, grants, and congressional "earmarks,"…

—Michael Tomasky

a co-authored book

coauthorship

(ˌ)kō-ˈȯ-thər-ˌship 

noun

or co-authorship

… accepting coauthorship on studies to which they did not significantly contribute.

—Mary Murray

Examples of coauthor in a Sentence

Recent Examples on the Web

The rate is lower than previously thought, said Nick Wright, coauthor of the study published Tuesday in the journal Monthly Notices of the Royal Astronomical Society. —Katie Hunt, CNN, 20 Mar. 2025

An enterprise cloud identity expert, multi-exit serial entrepreneur and coauthor of the SAML SSO standard. —Eric Olden, Forbes, 17 Mar. 2025

Quince Mountain has written for The New York Times and elsewhere, and is coauthor of the bestselling book Dogs on the Trail: A Year in the Life (Ecco, 2021). —Quince Mountain, Outside Online, 1 Mar. 2025

This realization led Wright and his coauthors to connect the cosmic phenomenon with mass extinctions on Earth. —Katie Hunt, CNN, 20 Mar. 2025

Word History

First Known Use

1827, in the meaning defined above

Rhymes for coauthor

• author

Kids Definition

coauthor

noun

co·​au·​thor

(ˈ)kō-ˈȯ-thər

: an author who works with another author