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  • af
    af
    abbreviation
    as fuck; to a great degree (a euphemistic initialism used as a general intensifier, without explicit vulgarity).
  • AF
    AF
    abbreviation
  • af-
    af-
    variant of ad- before f: affect.
  • Af.
    Af.
    abbreviation
    Africa.
  • a.f.
    a.f.
    abbreviation
    audio frequency.
  • A.F.
    A.F.
    abbreviation
    Air Force.
  • A/F
    A/F
    abbreviation
    as found
Synonyms

af

1 American  
[ey-ef, af] / ˈeɪˈɛf, æf /
Or AF

abbreviation

Slang.
  1. as fuck; to a great degree (a euphemistic initialism used as a general intensifier, without explicit vulgarity).

    He’s annoying af.


AF 2 American  

abbreviation

  1. Air Force.

  2. Anglo-French.

  3. Asian female.

  4. Pathology. atrial fibrillation.


af- 3 American  
  1. variant of ad- before f: affect.


Af. 4 American  

abbreviation

  1. Africa.

  2. African.


a.f. 5 American  

abbreviation

  1. audio frequency.


A.F. 6 American  

abbreviation

  1. Air Force.

  2. Anglo-French.

  3. audio frequency.


AF 1 British  

abbreviation

  1. Anglo-French

  2. automatic focus

  3. audio frequency

  4. (in Canada) Air Force

"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

A/F 2 British  

abbreviation

  1. as found

"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

a.f. 3 British  

abbreviation

  1. audio frequency

"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

af 4 British  

abbreviation

  1. Afghanistan

"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 af

First recorded in 2005–10

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:

P.R-R and C.T. were supported by Alzheimerfonden and Margaretha af Ugglas Stiftelse.

From Science Daily Mar. 11, 2024

Some recent revelations include the visionary abstract painter Hilma af Klint of Sweden, the genius American quilter Rosie Lee Tompkins and Mary Delany, an 18th-century British polymath who created some of Western art’s first collages.

From New York Times Feb. 5, 2024

The opera’s composer, Paula af Malmborg Ward, and librettist Kerstin Perski created a previous opera about swindlers and wanted to further explore why people believe serial liars, they told the Swedish press.

From Science Magazine Nov. 1, 2023

After youth spells at Boldklubben af 1893 and Brondby, Hojlund began his senior career at Copenhagen, making his debut aged 17 in 2020.

From BBC Jul. 25, 2023

She asked Park to bring in the groceries; then she spent the rest of the af ternoon in her room with the door closed.

From "Eleanor & Park" by Rainbow Rowell

Meanwhile, Deutsche Lufthansa canceled flights and grounded less fuel-efficient aircraft, while Air France-KLM AF 0.09%increase; green up pointing triangle froze hiring.

From The Wall Street Journal Jun. 11, 2026

In addition to getting swole AF, those who scarf down a bowl of this cereal can enjoy a boost in energy, better recovery, stronger bone health and enhanced cognitive function.

From Salon May 23, 2026

Children's authors were also celebrated, with Skandar series creator AF Steadman taking home author of the year, and Dog Man writer and illustrator Dav Pilkey winning best illustrator.

From BBC May 11, 2026

Air France-KLM AF -8.46%decrease; red down pointing triangle , British Airways owner IAG and Lufthansa all typically run at least one flight a day to Dubai.

From The Wall Street Journal Mar. 2, 2026

AF is a gnomon at Alexandria; SB a gnomon at Svene; IS and JK represent the sun's rays.

From A History of Science — Volume 1 by Edward Huntington Williams

She went back to Hongkong, confronted Townsend, told him, one af- ternoon, what an ass she thought he was.

From Time Magazine Archive

Chick Evans and young Roland Mackenzie played fiercely at each other's heels until in the late shadows of a nerve-straining af- ternoon.

From Time Magazine Archive

NOTE.—The forms ac-, af-, etc., are euphonic variations of ad-, and follow generally the rule that the final consonant of the prefix assimilates to the initial letter of the root.

From New Word-Analysis by William Swinton

A pure af- fection, concentric, forgetting self, forgiving wrongs and forestalling them, should swell the lyre of human love.

From Miscellaneous Writings, 1883-1896 by Mary Baker Eddy

There are probably few stations that would have at all af- fectedthem.

From Active Service by Stephen Crane

“So much of the evidence is so obviously unreliable that he plainly did not receive a fair trial,” said David A.F.

From Seattle Times Sep. 4, 2016

“These women can do everything men can, and some of them can do things that the men can’t,” said Crystal Meyer, a volunteer at Girard’s A.F.

From Washington Times Jul. 9, 2016

Perhaps the unusual house, designed by Angelus Temple architect A.F.

From Los Angeles Times Apr. 9, 2016

Posthumous honorees enshrined included: bantamweight Memphis Pal Moore, light heavyweight champion Jack Root, and middleweight Dave Shade in the old-timer category; British heavyweight John Gully in the pioneer category; promoter A.F.

From New York Times Jun. 12, 2011

“Then the Nine Years’ War began in A.F.

From "Brave New World" by Aldous Huxley

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