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  • an
    an
    indefinite article
    the form of a before an initial vowel sound (an arch; an honor ) and sometimes, especially in British English, before an initial unstressed syllable beginning with a silent or weakly pronounced h .
  • An
    An
    noun
    the Sumerian god of heaven: the counterpart of the Akkadian Anu.
  • AN
    AN
    abbreviation
  • an-
    an-
    a prefix occurring before stems beginning with a vowel or h in loanwords from Greek, where it means “not,” “without,” “lacking” (anarchy; anecdote ); used in the formation of compound words.
  • -an
    -an
    a suffix occurring originally in adjectives borrowed from Latin, formed from nouns denoting places (Roman; urban ) or persons (Augustan ), and now productively forming English adjectives by extension of the Latin pattern. Attached to geographic names, it denotes provenance or membership (American; Chicagoan; Tibetan ), the latter sense now extended to membership in social classes, religious denominations, etc., in adjectives formed from various kinds of noun bases (Episcopalian; pedestrian; Puritan; Republican ) and membership in zoological taxa (acanthocephalan; crustacean ). Attached to personal names, it has the additional senses “contemporary with” (Elizabethan; Jacobean ) or “proponent of ” (Hegelian; Freudian ) the person specified by the noun base. The suffix -an, and its variant -ian also occurs in a set of personal nouns, mainly loanwords from French, denoting one who engages in, practices, or works with the referent of the base noun (comedian; grammarian; historian; theologian ); this usage is especially productive with nouns ending in -ic (electrician; logician; technician ). See -ian for relative distribution with that suffix.
  • an.
    an.
    abbreviation
    in the year.
  • A.N.
    A.N.
    abbreviation
    Anglo-Norman.
Synonyms

an

1 American  
[uhn, an] / ən, æn /

indefinite article

  1. the form of a before an initial vowel sound (an arch; an honor ) and sometimes, especially in British English, before an initial unstressed syllable beginning with a silent or weakly pronounced h .

    an historian.


an 2 American  
[uhn, an] / ən, æn /
Also an',

conjunction

  1. Informal. and.

  2. Archaic. if.


An 3 American  
[ahn] / ɑn /

noun

  1. the Sumerian god of heaven: the counterpart of the Akkadian Anu.


An 4 American  
Symbol, Chemistry.
  1. actinon.


AN 5 American  
Or A.-N.

abbreviation

  1. Anglo-Norman.


an- 6 American  
  1. a prefix occurring before stems beginning with a vowel or h in loanwords from Greek, where it means “not,” “without,” “lacking” (anarchy; anecdote ); used in the formation of compound words.

    anelectric.


an- 7 American  
  1. variant of ad- before n: announce.


an- 8 American  
  1. variant of ana- before a vowel.

    anion.


-an 9 American  
  1. a suffix occurring originally in adjectives borrowed from Latin, formed from nouns denoting places (Roman; urban ) or persons (Augustan ), and now productively forming English adjectives by extension of the Latin pattern. Attached to geographic names, it denotes provenance or membership (American; Chicagoan; Tibetan ), the latter sense now extended to membership in social classes, religious denominations, etc., in adjectives formed from various kinds of noun bases (Episcopalian; pedestrian; Puritan; Republican ) and membership in zoological taxa (acanthocephalan; crustacean ). Attached to personal names, it has the additional senses “contemporary with” (Elizabethan; Jacobean ) or “proponent of ” (Hegelian; Freudian ) the person specified by the noun base. The suffix -an, and its variant -ian also occurs in a set of personal nouns, mainly loanwords from French, denoting one who engages in, practices, or works with the referent of the base noun (comedian; grammarian; historian; theologian ); this usage is especially productive with nouns ending in -ic (electrician; logician; technician ). See -ian for relative distribution with that suffix.


an. 10 American  

abbreviation

  1. in the year.


A.N. 11 American  

abbreviation

  1. Anglo-Norman.

  2. Associate in Nursing.


-an 1 British  

suffix

  1. (forming adjectives and nouns) belonging to or relating to; a person belonging to or coming from

    European

  2. (forming adjectives and nouns) typical of or resembling; a person typical of

    Elizabethan

  3. (forming adjectives and nouns) adhering to or following; an adherent of

    Christian

  4. (forming nouns) a person who specializes or is expert in

    dietitian

    phonetician

"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

An 2 British  
/ ɑːn /

noun

  1. Babylonian counterpart: Anu. myth the Sumerian sky god

"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

An 3 British  

symbol

  1. actinon

"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

AN 4 British  

abbreviation

  1. Anglo-Norman

"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

an 5 British  
/ æn, ən /

determiner

  1. a form of the indefinite article used before an initial vowel sound

    an old car

    an elf

    an honour

"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

an 6 British  
/ æn, ən /

conjunction

  1. (subordinating) an obsolete or dialect word for if See and

"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

an 7 British  

abbreviation

  1. Netherlands Antilles

"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

an- 8 British  

prefix

  1. not; without

    anaphrodisiac

"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

Grammar

See a 1.

Usage

An was formerly often used before words that begin with h and are unstressed on the first syllable: an hotel ; an historic meeting . Sometimes the initial h was not pronounced. This usage is now becoming obsolete

Etymology

Origin of an1

before 950; Middle English; Old English ān one in a weakened sense

Origin of an2

First recorded in 1125–75; Middle English, unstressed phonetic variant of and

Origin of an-6

< Greek. See a- 6, in- 3, un- 1

Origin of -an9

Middle English < Latin -ānus, -āna, -ānum; in some words replacing -ain, -en < Old French < Latin

Origin of an.10

From the Latin word annō

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:

Saturday’s game started 45 minutes after the National Weather Service issued an extreme heat warning as the temperature reached 100 degrees at first pitch at Dodger Stadium.

From Los Angeles Times ● Oct. 5, 2026

Everybody else who gets an ethics complaint or faces an ethics question faces fact-finding about it.

From Slate ● Oct. 5, 2026

Britain remains an incredibly close ally of the US and there are still hundreds of American servicemen and women stationed at RAF Fairford, as well as at other bases at Mildenhall and Lakenheath.

From BBC ● Oct. 5, 2026

Also working in Microsoft’s favor is its existing customer base, which gives it an advantage as it sells its AI tools to customers.

From MarketWatch ● Oct. 5, 2026

What doctors don't know in 1848, strep and staph do: that the broken head of Phineas is an ideal location to land.

From "Phineas Gage" by John Fleischman

An abundance of panic is how others have seen it.

From BBC ● Oct. 5, 2026

An extraordinary 2,232 of them were chasing House seats.

From Barron's ● Oct. 5, 2026

An “abundance movement” has formed around the idea that the country needs more, not less, energy.

From The Wall Street Journal ● Oct. 4, 2026

An analysis from Dow Jones Market Data bears this out.

From MarketWatch ● Oct. 4, 2026

“Reah and Vanessa are coming to crash at my place too. It’ll be great. An all-night gossip and Bachelor fest.”

From "Red Flags and Butterflies" by Sheryl Azzam

AutoNation AN -6.67%decrease; down pointing triangle logged lower revenue after sales of new vehicles declined in the second quarter.

From The Wall Street Journal ● Jul. 31, 2026

In her verdict, Judge AN Tse Ching relied in part on the messages exchanged after the encounter, according to the South China Morning Post, external.

From BBC ● Jul. 22, 2026

THE SDC IS AN international smorgasbord of ideas and inspiration, but it is not Ikea.

From Seattle Times ● May 5, 2023

I have no idea if the figures in SBF’s Substack post are accurate; SBF himself labels them as “JUST AN ESTIMATE.”

From Slate ● Jan. 13, 2023

They screamed up at the bleachers: “GIMME AN E!”

From "Stargirl" by Jerry Spinelli

I just - I do have to say it’s an- it’s an absolutely great novel, and he was a great writer.

From Scientific American ● Apr. 20, 2023

For too many parents and their children, getting into a highly selective school isn’t just another challenge, just an- other goal.

From MSNBC ● Mar. 21, 2015

Brooks arrived at the restaurant along with Valerie Jamieson, an- other physics editor from New Scientist, who introduced herself with a melodic Scottish brogue.

From Scientific American ● Jan. 31, 2014

From top, the band Yuck was among those that appeared on the tour; Stephen Pope of Wavves, appropriately named, an- other cruise group; Lou Barlow, leaning back, playing with Sebadoh.

From New York Times ● Mar. 30, 2012

I sniff my school uniform, smelling traces of smoke saturating it, too, mingled with an an- imal smell—the reek of guinea pigs.

From "The Queen of Water" by Laura Resau

That was what they sang for the next few months as they wound through college campuses and through the bus route from Saket -an old protestor's chant about azaadi, freedom.

From BBC ● Dec. 14, 2013

What the Bishops do have plenty of is "Bishopry" -an elusive but tensile esprit that makes them feel different, not to say unique.

From Time Magazine Archive

Director Clurman agrees: 'Julie hasn't developed what I call genius -an out-of-bounds personality.

From Time Magazine Archive

That became even more of a certainty last week when the Swedish Academy bestowed on him the 1964 Nobel Prize for Literature -an honor he didn't want.

From Time Magazine Archive

‘In the end,’ he whispered, ‘he summons -an elemental.’

From "Wolf Brother" by Michelle Paver

Although he is an effusive greeter, a vigorous handshaker and an. expert at the Indiana political massage,* he has a tendency toward bluntness.

From Time Magazine Archive

Browsing among the classics of 19th Century fiction has lately proved an. inexpensive and richly rewarded occupation for Hollywood story departments.

From Time Magazine Archive

Unlike most other raids in China, this one required a flight across treacherous mountains, through heavy weather, and an. approach over enemy-held Indo-China territory.

From Time Magazine Archive

These he delivered in an anticlimactic five-minute broadcast an. hour later.

From Time Magazine Archive

C, freshly opened flower, with the large petal-like sepals removed, × ½. p, petals. an. stamens. st. stigma.

From Elements of Structural and Systematic Botany For High Schools and Elementary College Courses by Douglas Houghton Campbell

I put the turning point in the spring of 2009, when A.N.

From The Wall Street Journal ● Oct. 17, 2025

A couple of decades later, Gottlob Frege with his "Begriffsshrift" and then Bertrand Russell and A.N.

From Salon ● Jul. 29, 2024

Looking back over the years, the self-critical, gimlet-eyed A.N.

From Washington Post ● Nov. 23, 2022

Of its droll notational style — canny observations yoked to a stream-of-consciousness method — A.N.

From New York Times ● Jan. 7, 2020

“But that was A.N. And I never liked it half as much as I like it with you.”

From "Out of Darkness" by Ashley Hope Pérez

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