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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: Anumyth 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:

Smith, 24, said in an Instagram video earlier this month that Whimsy was diagnosed with cancer late last year.

From Los Angeles Times Jul. 18, 2026

Pursuing an adaptation of this caliber feels like a losing battle, something a filmmaker does just to prove that they can.

From Salon Jul. 18, 2026

The fire was covering an area of about six square kilometres.

From BBC Jul. 18, 2026

Taco Bell has said it would remove and replace contaminated lettuce out of an abundance of caution.

From MarketWatch Jul. 18, 2026

Everything in it is an expression of the many facets of herself, including the sides of her that most people don’t see.

From "At Last She Stood" by Erin Entrada Kelly

An asteroid absorbs sunlight and later releases that energy as infrared radiation.

From Science Daily Jul. 18, 2026

An opening round of 67 was followed by a second-round 69 on Friday to lift him right into the thick of the contenders.

From BBC Jul. 17, 2026

An investor who shelled out around $1,500 for Apple stock back in early 2001 is sitting on a position worth nearly $2.2 million today, including dividends.

From The Wall Street Journal Jul. 17, 2026

An explosion on the launch pad, as Blue Origin found out earlier this year, could be a much bigger problem.

From MarketWatch Jul. 17, 2026

An automobile at a butchering like to take everybody’s mind off business.

From "The Teacher’s Funeral" by Richard Peck

Rajeev Kamal Kumar, an anthropologist at Patna's AN Sinha Institute of Social Sciences, who worked on a government study of prohibition, says both sides of the story are true.

From BBC Nov. 18, 2025

AutoNation AN -1.03%decrease; red down pointing triangle recorded higher third-quarter profit and sales as the company saw growth across all of its major categories, including new vehicles.

From The Wall Street Journal Oct. 23, 2025

HIS DAD, AN ecologist and amateur photographer, instilled in his son the importance of pictures in engaging people in conservation.

From Seattle Times Dec. 1, 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

Dumas once summed up his own significance: "I carry with me wherever I go - I don't know how it is, but it is so -an atmosphere of life and stir which has become proverbial."

From Time Magazine Archive

They bemoaned "a blood bath with no military objective" -an accusation belied, not only by the British photographs of the industrial damage but also by Commandant Fontaine's eyewitness account of it.

From Time Magazine Archive

By then the space traveler is weightless -an unearthly state in which he may do himself injury with normal movements of his own muscles.

From Time Magazine Archive

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

From "Wolf Brother" by Michelle Paver

The result was published in an. edition of 300,000 copies in England last month.

From Time Magazine Archive

Brother Percy has the sage counsel of Brother Jesse Isidor, who returned to the U. S. for an. operation last month.

From Time Magazine Archive

Balogh's ideas are an. odd mixture of common sense and doctrinaire Pestering.

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

M, the same, with the parts separated. p, petals. s, sepals. an. stamens. gy. pistil.

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

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

The Spring Valley-Wesley Heights Citizens Association’s website states that Wesley Heights, one of the country’s first planned communities, was developed in the 1920s by W.C. and A.N.

From Washington Post Feb. 1, 2022

In his decades since scouting, A.N. says he’s experienced severe emotional trauma, including “shame, humiliation and loss of enjoyment of life.”

From Seattle Times Feb. 18, 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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