Ar

¹ American  

Or Ar.

abbreviation

1. Arabic.

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Ar ² American  

Symbol, Chemistry.

1. argon.

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AR ³ American  

abbreviation

1. annual return.

2. (loosely) AR-15.

3. Arkansas (approved especially for use with zip code).

4. Army Regulation.

   This regulation supersedes AR 600-20, dated 6 November 2014.

5. atmospheric river.

6. augmented reality.

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A/R ⁴ American  

Or a/r

1. account receivable.

2. accounts receivable.

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ar- ⁵ American  

1. variant of ad- before r: arrears.

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-ar ⁶ American  

1. variant of the adjective-forming suffix -al, joined to words in which an l precedes the suffix: circular; lunar; singular .

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-ar ⁷ American  

1. variant of -er, often under the influence of a spelling with -ar- in a cognate Latin noun.

   burglar; cellar; collar; mortar; poplar; scholar; vicar; vinegar.

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-ar ⁸ American  

1. variant of -er on the model of -ar, used in the formation of nouns of agency: liar; beggar .

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ar. ⁹ American  

abbreviation

1. arrival.

2. arrive; arrives.

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a.r. ¹⁰ American  

abbreviation

1. Insurance. all risks.

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A.R. ¹¹ American  

abbreviation

1. annual return.

2. Army Regulation; Army Regulations.

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AR ¹ British  

abbreviation

1. Arkansas

2. Autonomous Region

3. Also: A/R.  (in the US and Canada) accounts receivable

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Ar. ² British  

abbreviation

1. Arabia(n)

2. Also: Ar.  Arabic

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-ar ³ British  

suffix

1. of; belonging to; like

   linear

   polar

   minuscular

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Ar ⁴ British  

symbol

1. argon

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a.r. ⁵ British  

abbreviation

1. anno regni

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ar ⁶ British  

abbreviation

1. Argentina

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Usage

What else does AR mean? AR can stand for hundreds of things, but here are three of the big ones: augmented reality, alternate reality, and ArmaLite rifle.How do you pronounce AR?[ ey-ahr ]

Etymology

Origin of -ar

< Latin -āris; replacing Middle English -er < Anglo-French, Old French < Latin -āris

Example Sentences

Among them are more than 160 prominent figures, including author Ayse Kulin and actress Mujde Ar.

From Barron's • Feb. 25, 2026

While most who patronize Ar de Rock don’t go to Mass, she added, some become curious enough to ask about worship times.

From Seattle Times • Nov. 9, 2023

The topic is heavy, but — in yet another surprise — this memoir about depression has been a best seller in Brazil, where it was originally published as “O Ar Que Me Falta,” in 2021.

From New York Times • Feb. 24, 2023

At the royals' arrival at the Senedd a fanfare will be played, and WNO youth opera will perform Ar Lan y Môr.

From BBC • Oct. 13, 2021

He did not come up the course of the Ar like most people, but down, out of the forests of the higher mountainside.

From "A Wizard of Earthsea" by Ursula K. Le Guin