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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

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

In the middle of the exhibition “Hilma af Klint and Piet Mondrian: Forms of Life,” currently showing at Tate Modern, in London, sits a pair of maquettes that encapsulate the artists’ differences.

From New York Times Jul. 27, 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

Arf, af, oof, eef, rrmm— The arf mg il beasto has rolled over onto his back and is letting Jake rub his pancia—pancho—what you call it?—stomaco?

From "The Unfinished Angel" by Sharon Creech

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

European airline group Air France-KLM AF -2.28%decrease; red down pointing triangle lowered its capacity forecasts for this year as it expects further increases in jet fuel costs driven by the Iran war.

From The Wall Street Journal Apr. 30, 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

Footnote 16-16: AF Ltr 35-3, 11 May 49.

From Integration of the Armed Forces, 1940-1965 by MacGregor, Morris J.

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

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

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

It appears as a-, ab-, ac-, ad-, af-, ag-, al-, an-, ap-, ar-, as-, at-, as in achieve, abbreviate, accede, admire, affix, aggregate, allot, annex, approve, arrive, assign, attract.

From Chambers's Twentieth Century Dictionary (part 4 of 4: S-Z and supplements) by Various

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

From Active Service by Crane, Stephen

Two neighborhood giants have pushed back against the project: A.F.

From Los Angeles Times Jan. 7, 2025

“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

She is also a firefighter at Girard’s A.F.

From Washington Times Jul. 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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