US, informal
: fraternity sense 1c
Today's progressive notions of responsible partying and political correctness have hit hard at all eighteen of Dartmouth's frats but especially so at Alpha Delta, which has always had the reputation of being the baddest house on campus.—
Eric Konigsberg
—often used before another nounEric Konigsbergfrat houses/brothers
(often disparaging) a frat boy [=a member of a fraternity]
Examples of frat in a Sentence
Recent Examples on the Web
Raised in a household of voracious readers in suburban Philadelphia, her father a professor of Spanish at the University of Pennsylvania and her mother having worked for magazines, Sebold disdained the university’s frat culture.
—
Joaquin Sapien,
ProPublica,
30 June 2026
So, the group wades deeper into the front lines, dodging bachelorettes and the occasional frat boy.
—
Rob Picheta,
CNN Money,
27 June 2026
Take Alison Brie, who was 26 while playing a 19-year-old in Community, or Dave Franco, who played a frat brother in Neighbors at 27.
—
Jane Lacroix,
PEOPLE,
22 June 2026
Or even with the Martha's Vineyard frat bros?
—
Amanda Le,
InStyle,
20 June 2026
See All Example Sentences for frat
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Joaquin Sapien,
ProPublica,
30 June 2026
So, the group wades deeper into the front lines, dodging bachelorettes and the occasional frat boy.
—
Rob Picheta,
CNN Money,
27 June 2026
Take Alison Brie, who was 26 while playing a 19-year-old in Community, or Dave Franco, who played a frat brother in Neighbors at 27.
—
Jane Lacroix,
PEOPLE,
22 June 2026
Or even with the Martha's Vineyard frat bros?
—
Amanda Le,
InStyle,
20 June 2026
See All Example Sentences for frat
Cite this Entry
“Frat.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/frat. Accessed 6 Jul. 2026.
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