Meaning & use
co-author
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Meanings
nouncountable
One of two or more people who write a book, article or report together.
Grammar: Countable: my co-author, her three co-authors.
Patterns
- co-author of something
- co-author with someone
She is the co-author of a textbook on climate science.
His co-author wrote the first chapters while he handled the data.
The paper lists four co-authors from three universities.
verbtransitive
To write something together with another person or people.
Grammar: Takes an object: they co-authored a novel.
Patterns
- co-author something with someone
She co-authored a study on sleep with a colleague in Canada.
The two friends co-authored a children's book.
He plans to co-author a report on housing.
Word forms
| plural | co-authors |
|---|---|
| third person | co-authors |
| past | co-authored |
| -ing form | co-authoring |
Common combinations
- lead co-author
- The lead co-author presented the findings at the conference.
- co-author a paper
- They co-authored a paper on ocean currents.
- co-author of a book
- She became the co-author of a cookbook.
- sole author versus co-author
- He prefers being a co-author to writing alone.
Synonyms and how they differ
- collaborator
- A collaborator works with others on any project, while a co-author specifically shares credit for a written work.
- joint author
- Joint author is the more formal, legal phrase and is common in copyright texts.
- writing partner
- Writing partner is casual and does not always imply that the name appears on the cover.
Opposites
Word family
- author noun
- the writer of a work
- authorship noun
- the fact of writing something
- coauthor noun
- the unhyphenated spelling
Commonly confused: co-author or editor?
co-author vs editor
An editor improves and manages the text, whereas a co-author shares in writing it.
Practice
Which sentence uses co-author as a verb?
Choose one answer.
Co-authored is a verb form with an object, the report. The other sentences use co-author as a noun.
Make it your own
Write a sentence using “co-author”, then check it and compare it with the examples above.