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
Amy is an extremely specific archetype within Wasia, a cosmopolite who floats through a stratosphere of international schools and three-city Instagram bios.—
E. Alex Jung,
Vulture,
8 Sep. 2026 The 4,000-year-old skeletal remains from the bio-archaeology lab?—
Nabih Bulos,
Los Angeles Times,
8 Sep. 2026 His social media bio also reportedly described him as a Super Bowl LV winner and a Dallas Cowboys safety.—
Joshua Hong,
Fortune,
5 Sep. 2026 Immediately following Fox’s announcement on Thursday, Bartiromo’s bio and show pages were wiped from Fox’s websites.—
Steve Kopack,
NBC news,
4 Sep. 2026 See All Example Sentences for bio