co·​au·​thor (ˌ)kō-ˈȯ-thər How to pronounce coauthor (audio)
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 noun
or co-authorship
… accepting coauthorship on studies to which they did not significantly contribute. Mary Murray

Example Sentences

Recent Examples on the Web Dai and her coauthor, Silvia Saccardo, an assistant professor at Carnegie Mellon University, found that text message reminders could boost Covid-19 vaccination rates at the UCLA Health system by as much as 3.4 percentage points. Lauren Mascarenhas, CNN, 29 June 2021 Previous research by another coauthor, Liran Carmel, and other colleagues found that DNA hosting these silencing units degrades differently than genetic material that doesn’t. Leslie Nemo, Discover Magazine, 19 Sep. 2019 Katharine Phillips, a coauthor of the study and a professor of psychiatry and human behavior at Brown University, presented these and other findings . Joseph Calamia, Discover Magazine, 26 May 2010 Aaron Perzanowski, coauthor of The End of Ownership, researches intellectual and personal property law at the University of Michigan Law School. WIRED, 2 Nov. 2022 On Friday, Truss sacked her treasury secretary and longtime ally, Kwasi Kwarteng, the coauthor of her supply-side budget. Peter Weber, The Week, 17 Oct. 2022 Still, Scott Sampson, a coauthor and the executive director of the California Academy of Sciences suggests in the statement that learning more about historical kelp forests can be useful. Margaret Osborne, Smithsonian Magazine, 7 Dec. 2022 Study coauthor and geneticist Svante Pääbo, director of the Max Planck Institute for Evolutionary Anthropology in Leipzig, Germany, pioneered efforts to extract, sequence and analyze ancient DNA from Neanderthal bones. Katie Hunt, CNN, 13 Sep. 2022 Alex Tapscott is managing director of the Ninepoint Digital Assets Group (a division of Ninepoint Partners LP) and coauthor of Blockchain Revolution. Alex Tapscott, Fortune, 28 June 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'coauthor.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1827, in the meaning defined above

Time Traveler
The first known use of coauthor was in 1827

Dictionary Entries Near coauthor

Cite this Entry

“Coauthor.” Dictionary, Merriam-Webster, Accessed 27 Jan. 2023.

Kids Definition


: an author who works with another author

More from Merriam-Webster on coauthor

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