In a library, the word biography refers both to a kind of book and to a section where books of that kind are found. Each biography tells the story of a real person's life. A biography may be about someone who lived long ago, recently, or even someone who is still living, though in the last case it must necessarily be incomplete. The term autobiography refers to a biography written by the person it's about. Autobiographies are of course also necessarily incomplete.
Sometimes biographies are significantly shorter than a book—something anyone who's been asked to submit a biography for, say, a conference or a community newsletter will be glad to know. Often the word in these contexts is shortened to bio, a term that can be both a synonym of biography and a term for what is actually a biographical sketch: a brief description of a person's life. These kinds of biographies—bios—vary, but many times they are only a few sentences long. Looking at bios that have been used in the same context can be a useful guide in determining what to put in your own.
Noun
you can read a bio of the author on her home page
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Noun
Per a bio, the sisters wrote hundreds of songs together and performed more than 1,000 concerts around North America and in Norway.—
Erik Pedersen,
Deadline,
3 Nov. 2026 Along with substantial improvements in recycling and bio-refining, businesses would be called to increasingly adopt remanufacturing, repair and reuse models, while leasing, rental and product-as-a-service approaches become more widespread.—
Jennifer Bringle,
Footwear News,
2 Nov. 2026 Wilbon wrote for the Washington Post from 1980 to 2010, according to his ESPN bio page.—
Brian Niemietz,
New York Daily News,
2 Nov. 2026 Bleyer also wrote jokes for President Barack Obama, according to his online bio.—
Brian Niemietz,
Chicago Tribune,
29 Oct. 2026 See All Example Sentences for bio