What does factoid mean?
A factoid is a brief, self-contained item of information that sounds like a fact — typically something trivial, surprising, or easily shared. The word has two competing senses. In its original meaning, coined by the American writer Norman Mailer in the 1970s, a factoid is something that looks like a fact but isn't: an invented or unverified claim that acquires credibility simply by appearing in print or being repeated. In everyday modern usage, however, a factoid more often means a small, genuinely true tidbit of trivia — the kind of nugget dropped into conversation, a quiz, or the margin of a magazine article. Because of this split, careful writers use the word with some caution: calling a claim a factoid can imply doubt about its accuracy, while using it for verified trivia is generally understood as informal and friendly. The word is common in journalism, broadcasting, and casual speech, where brevity and shareability matter more than depth.
nounA brief or trivial piece of information presented as a fact, especially one that is widely repeated but unverified or false; also, a small genuine fact of the kind used to enliven conversation.
- A brief, trivial piece of information, especially one presented as fact but unverified or false (the original sense).
- A small but genuinely true and interesting fact, especially one used in conversation, media, or quizzes.
"The presenter livened up the talk with a factoid about octopuses having three hearts."
"The museum guide offered one factoid after another about ancient Rome."
"Many so-called facts about the human brain are actually factoids that have spread through repetition rather than research."
Regular plural; commonly used when referring to collections of trivia, e.g. in quizzes or listicles.
"The app sends users daily factoids on topics ranging from history to astronomy."
"Factoid" was coined by Norman Mailer — and he originally meant it as a lie: a made-up 'fact' that gets accepted because it appears in print.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of factoid
Factoid was coined by the American novelist Norman Mailer in his 1973 book "Marilyn," formed from "fact" plus the suffix "-oid" (meaning "resembling" or "having the appearance of"), which itself comes from Greek "-oeidēs" via Latin "-oides." Mailer intended the word critically, describing a factoid as a fabricated statement that becomes accepted as true once it appears in print. Over subsequent decades the word drifted toward a neutral sense, coming to denote any small, often genuinely true piece of trivia.
How factoid is actually used
The word carries a tension between its two senses: originally coined pejoratively by Norman Mailer for invented 'facts' that gain credibility through print, it is now very often used neutrally or positively for any bite-sized interesting fact. Careful writers reserve it for dubious or trivial claims, while casual usage treats factoids as harmless fun. Register is informal to neutral; it is common in journalism, media, and conversation.
Easily confused with factoid
A fact is a verified truth, while a factoid may be unverified, trivial, or even false despite sounding factual.