Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun co-author

1 sense of coauthor

Sense 1
coauthor, joint author -- (a writer who collaborates with others in writing something)
       => writer, author -- (writes (books or stories or articles or the like) professionally (for pay))

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb co-author

1 sense of co-author

Sense 1
co-author -- (be a co-author on (a book, a paper))
       => author -- (be the author of; "She authored this play")