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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:

So we’ll do a really tough 45-minute workout an I’ll probably want to go for a hike after that.

From Los Angeles Times ● Oct. 23, 2026

I’ve published books with all of the big 5 houses and comparing those experiences to the Counterpoint experience, the Dan experience, is like comparing an AI-generated metaphor, to, well, this one.

From Los Angeles Times ● Oct. 23, 2026

Hedge-fund-rich Sang-woo has an air of cool privilege, while the gloomy, taciturn Ho-seok harbors unprocessed trauma about what happened during the strike, the details of which are judiciously doled out to us in flashbacks.

From Los Angeles Times ● Oct. 23, 2026

Yet “Clayface” is merely an introduction, not an acting showcase.

From Los Angeles Times ● Oct. 23, 2026

By 1941, when her feet and legs swell, whispers about an invasion grow louder.

From "At Last She Stood" by Erin Entrada Kelly

An online petition with over a million signatures has asked Globo to implement a live fact-checking system for claims made by both candidates during the debate.

From Barron's ● Oct. 23, 2026

An international research team led by scientists at the University of Queensland’s School of Mathematics and Physics brought together observations of 2,884 Type Ia supernovae.

From Science Daily ● Oct. 23, 2026

An audit by state Comptroller Thomas DiNapoli in February found that centers billed Medicaid for services exceeding their physical capacity.

From The Wall Street Journal ● Oct. 22, 2026

An Instagram post from one golfer, who appears to be former San Clemente Mayor Tim Brown, showed some of the damage.

From Los Angeles Times ● Oct. 22, 2026

An idea forming in his mind suddenly became crystal clear.

From "Rowan of Rin" by Emily Rodda

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

This one is called AN •EYE*FOR* AN* EYE.

From "Cat's Eye" by Margaret Atwood

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

Bast took an- other breath—sixteen—and braced himself against the moment he feared would come.

From "The Name of the Wind" by Patrick Rothfuss

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

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

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

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

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

From "Wolf Brother" by Michelle Paver

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

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

With the Symphony for the last two springs "Doc" Davison's singers have given Bach's great B Minor Mass. With the Vassar Glee Club in Poughkeepsie this spring they made an. evening of Brahms's German Requiem.

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

D, a single petal and stamen, × ½. f, the filament. an. anther.

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

Geetha A.N., a 47-year-old social health activist who is the first point of contact for 420 families, begins her rounds at 9 a.m.

From New York Times ● May 23, 2021

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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