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  • fab
    fab
    adjective
    fabulous.
  • FAB
    FAB
    abbreviation
    flavoured alcoholic beverage
  • F.A.B.
    F.A.B.
    interjection
    an expression of agreement to, or acknowledgment of, a command
Synonyms

fab

1 American  
[fab] / fæb /

adjective

Slang.

  1. fabulous.

fab 2 American  
[fab] / fæb /

noun

  1. a factory for manufacturing, especially one for manufacturing the semiconductor devices used in computers and other advanced electronics (often used attributively).

    The newly built fab will create jobs in the community.

    He is an advisor at a fab lab nearby.
FAB 1 British  

abbreviation

  1. flavoured alcoholic beverage

  2. fuel air bomb

"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
fab 2 British  
/ fæb /

adjective

  1. short for fabulous

"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

interjection

  1. an expression of approval or enthusiasm

"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
F.A.B. 3 British  

interjection

  1. an expression of agreement to, or acknowledgment of, a command

"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

Etymology

Origin of fab1

First recorded in 1960–65; by shortening

Origin of fab2

First recorded in 1980–85; shortened from fabrication ( def. )

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.

One of the more interesting themes Spitz develops is the symbiotic relationship between the Beatles and Stones, with the Fab Four mostly overshadowing them — until they didn’t.

From Los Angeles Times • Apr. 20, 2026

While the Terafab, Google and Fab 34 announcements drove Intel’s stock higher, Rasgon said he doesn’t “see huge actual fundamental changes coming out of them.”

From MarketWatch • Apr. 16, 2026

Listen to the entire conversation with Paul Shaffer on “Everything Fab Four” and subscribe via Spotify, Apple, Google or wherever you’re listening.

From Salon • Apr. 8, 2026

Fab 34 manufactures chips like Intel’s Core Ultra and Xeon 6 using Intel 4 and Intel 3 process technologies.

From Barron's • Apr. 1, 2026

My mother, sensing my apathy toward reading, had bought me the Mitch Albom book Fab Five.

From "The Other Wes Moore: One Name, Two Fates" by Wes Moore

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.