Ar

¹

or Ar.

abbreviation for

1. Arabic ( def 5 ).

-ar

²

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

Ar

³

Symbol, Chemistry.

1. argon.

-ar

⁴

1. variant of -er ², often under the influence of a spelling with -ar- in a cognate Latin noun:

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

-ar

⁵

1. variant of -er ¹ on the model of -ar ², used in the formation of nouns of agency: liar; beggar .

AR

⁶

abbreviation for

1. annual return.
2. (loosely) AR-15 ( def ).
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 ( def ).
6. augmented reality ( def ).

A/R

⁷

or a/r

1. account receivable.
2. accounts receivable.

ar-

⁸

1. variant of ad- before r: arrears.

ar.

⁹

abbreviation for

1. arrival.
2. arrive; arrives.

a.r.

¹⁰

abbreviation for

1. Insurance. all risks.

A.R.

¹¹

abbreviation for

1. annual return.
2. Army Regulation; Army Regulations.

-ar

¹

suffix forming adjectives

1. of; belonging to; like

   linear

   minuscular

   polar

Ar

²

the chemical symbol for

1. argon

AR

³

abbreviation for

1. Arkansas
2. Autonomous Region
3. AlsoA/R (in the US and Canada) accounts receivable

Ar.

⁴

abbreviation for

1. Arabia(n)
2. AlsoAr Arabic

a.r.

⁵

abbreviation for

1. anno regni

ar

⁶

the internet domain name for

1. Argentina

Word History and Origins

Origin of Ar¹

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

Word History and Origins

Origin of Ar¹

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

Origin of Ar²

Latin: in the year of the reign

Example Sentences

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

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

In Huang’s painting, “Br” and “Ba” are joined by “Ar,” for “Art.”

From Los Angeles Times

When Dan Ar Braz performed on a world stage, it was an opportunity for people to not only hear Breton but to learn about the struggle to keep the language alive.

From Salon

Ar is a group that generates a fluorescent by-product on hydrolysis.

From Nature