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Synonyms

frat

American  
[frat] / fræt /

noun

Informal.
frats plural
  1. fraternity.


frat British  
/ fræt /

noun

  1. slang

    1. a member of a fraternity

    2. ( as modifier )

      the frat kid

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of frat

An Americanism dating back to 1890–95; by shortening

Explanation

A frat is a club for male college students. The stereotypical frat boy is a rich kid on spring break drinking beer, doing chest bumps, and crashing Daddy’s Mercedes. But of course some frat boys are very nice. Seriously, bro. The word frat is short for fraternity, and both words mean "body of men associated by common interest," from the Latin root fraternitatem, or "brotherhood." A frat will usually have their own house and a name made up of two or three Greek letters. A frat can be a close-knit community of young men who live, work, and volunteer in the community together. Some frats, however, are exclusionary societies that haze new members and throw drunken campus parties.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Members of Wunderlich’s Facebook group say Lucky Strikes are more like frat houses.

From The Wall Street Journal Jul. 2, 2026

If that sounds like a 1997 frat party elevated to political abstraction, fair enough.

From Salon Feb. 8, 2026

“Those groups would end up endorsing a bunch of frat bros.”

From Slate Dec. 18, 2025

Last week, with the season drawing near, a crowd of frat brothers flooded onto the practice court at Galen Center.

From Los Angeles Times Nov. 3, 2025

He looked maybe thirty, with a slight potbelly, like a frat boy who hadn’t yet realized college was over.

From "The Mark of Athena" by Rick Riordan

Do you think people who are in frats will appreciate that "The Line" is authentic, even though the film doesn't paint them in a good light?

From Salon Jun. 7, 2023

Then I started hearing stories about frats or about people going out.

From Slate Aug. 27, 2020

What do you think should be done to keep frats a safe place for young pledges?

From Seattle Times Jul. 31, 2020

“The house was so nasty that all the college frats had turned it down as unsanitary,” he recalled in a commencement speech this year at Catholic University’s law school.

From New York Times Jul. 14, 2018

We had to hypnotize him, daze him, waft him off his feet; and if necessary we had to get the other frats to help us.

From At Good Old Siwash by Fitch, George

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