Ar

or Ar.

abbreviation

Arabic (def. 5).

Other definitions for Ar (2 of 11)

Ar²

Symbol, Chemistry.

argon.

Other definitions for AR (3 of 11)

abbreviation

annual return.
(loosely) AR-15.

Arkansas (approved especially for use with zip code).
Army Regulation: This regulation supersedes AR 600-20, dated 6 November 2014.
atmospheric river.
augmented reality.

Other definitions for ar- (4 of 11)

ar-

variant of ad- before r: arrears.

Other definitions for -ar (5 of 11)

-ar¹

variant of the adjective-forming suffix -al¹, joined to words in which an l precedes the suffix: circular; lunar; singular.

Origin of -ar

⁵

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

Other definitions for -ar (6 of 11)

-ar²

variant of -er², often under the influence of a spelling with -ar- in a cognate Latin noun: burglar; cellar; collar; mortar; poplar; scholar; vicar; vinegar.

Other definitions for -ar (7 of 11)

-ar³

variant of -er¹ on the model of -ar², used in the formation of nouns of agency: liar; beggar.

Other definitions for ar. (8 of 11)

ar.

abbreviation

arrival.
arrive; arrives.

Other definitions for a.r. (9 of 11)

a.r.

abbreviation

Insurance. all risks.

Other definitions for A/R (10 of 11)

A/R

account receivable.
accounts receivable.

Other definitions for A.R. (11 of 11)

A.R.

abbreviation

annual return.
Army Regulation; Army Regulations.

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use Ar in a sentence

In 1981, there was still A&R radio, and that was rock radio.
Martha Quinn, Nina Blackwood & More Original MTV VJs Tell All | Melissa Leon | May 7, 2013 | THE DAILY BEAST
Take these letters, s-l-y-w-a-r-e, and in your head try to put them together to make a word; you will have some trouble, probably.
English: Composition and Literature | W. F. (William Franklin) Webster
"M-a-c-a-r-o-n-i," said she, triumphantly, remembering her father's remark that there were no double letters in it.
Marjorie's Busy Days | Carolyn Wells
Argentan (a˙r-zha˙n˙-tn˙), a French town, department of Orne (Normandy), with an old castle and some manufactures.
The New Gresham Encyclopedia. Vol. 1 Part 2 | Various
"For-w-a-r-d--" and the next I knew men were dropping down all around me, and we were advancing.
Who Goes There? | Blackwood Ketcham Benson

When you said you would tell us something that would ‘Teddy Bear’ our teeth, you meant b-a-r-e, not b-e-a-r.
Campfire Girls at Twin Lakes | Stella M. Francis

British Dictionary definitions for ar (1 of 6)

the internet domain name for

Argentina

British Dictionary definitions for Ar (2 of 6)

the chemical symbol for

argon

British Dictionary definitions for AR (3 of 6)

abbreviation for

Arkansas
Autonomous Region

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

British Dictionary definitions for -ar (4 of 6)

-ar

suffix forming adjectives

of; belonging to; like: linear; polar; minuscular

Origin of -ar

⁴

via Old French -er from Latin -āris, replacing -ālis (-al 1) after stems ending in l

British Dictionary definitions for a.r. (5 of 6)

a.r.

abbreviation for

anno regni

Origin of a.r.

⁵

Latin: in the year of the reign

British Dictionary definitions for Ar. (6 of 6)

Ar.

abbreviation for

Arabia(n)
Also: Ar Arabic

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

Scientific definitions for Ar

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