Word.ws English Dictionary

ar

UK/ˈɑː//ˈɑɹ/

ar noun: the name of the Latin script letter R/r. Also the alternative form of arr.

Noun (1)

ar (plural ars)

  1. The name of the Latin script letter R/r.
    • All the ars in the inscription.
    • I have drunk en-ee-cee-tee-ay-ar from the ef-ell-oh-doubleyou-ee-ar-ess in his gee-ay-ar-dee-ee-en many a time.2004, Will Rogers, The Stonking Steps, page 170

Adjective capitalized: AR

AR (not comparable)

  1. (abbreviation, initialism) Initialism of autoregressive.

Noun (2) capitalized: AR

AR (countable and uncountable, plural ARs)

  1. (countable) An AR-15 personal semi-automatic rifle, M-16 assault rifle, M-4 carbine, derivative or related gun; the Armalite AR family and derivatives.
    • In its August 2003 issue, while the ban was still in effect, Guns & Ammo ran a feature story titled “Stoner’s ‘Black Rifle’ Marches On,” subtitled “The basic AR platform has been refined, improved, upgraded, power-boosted and accurized.”2017 December 14, David Heath, Elise Hansen and AJ Willingham, CNN Design: Joyce Tseng, “How an ‘ugly,’ unwanted weapon became the most popular rifle in America”, in CNN
  2. (countable, informal) An assault rifle or automatic rifle.
  3. (abbreviation, initialism, plural, plural-only, uncountable) Initialism of accounts receivable.
  4. (abbreviation, initialism, postal) Initialism of acknowledgment of receipt.
  5. (abbreviation, initialism, age regression) Initialism of age regression.
  6. (abbreviation, initialism, uncountable) Initialism of augmented reality.
    • Near-synonyms: MR, mixed reality, spatial computing, CPS, cyber-physical system
    • (Cover started out as a company in the AR and VR business, but moved into the virtual talent sector; Ichikara is a startup designed to support their virtual talent)2020 December 22, Tyler Colp, “The Vtuber Industry: Corporatization, Labor, and Kawaii”, in Vice, archived from the original on 22 Dec 2020
    Synonyms:
    MR, mixed reality, spatial computing, CPS, w:cyber-physical system
  7. (abbreviation, initialism, slang) Initialism of alternate reality.
  8. (US, abbreviation, countable, initialism) Initialism of American record, national record for the United States.
  9. (abbreviation, initialism) Initialism of administrative rule or administrative regulation.
    • As I was going over the AR book for my status change, I read several other ARs I believed the institution was violating so I decided to ask about them at the meeting.1984 August 18, Karen J. Cox, “Women In Cages”, in Gay Community News, volume 12, number 6, page 7
  10. (abbreviation, initialism) Initialism of androgen receptor.
  11. (abbreviation, countable, initialism) Initialism of area record, best achievement among those by persons from a given continent.
  12. (abbreviation, initialism, crime) Initialism of armed robbery.
Show 5 more meaningsShow fewer meanings
  1. (abbreviation, initialism) Initialism of artificial respiration.
  2. (abbreviation, countable, initialism) Initialism of aspect ratio.
  3. (abbreviation, initialism) Initialism of assembly resolution.
  4. (abbreviation, initialism) Initialism of atmospheric river.
  5. (abbreviation, initialism) Initialism of aerial refueling.

Proper noun capitalized: AR

AR

  1. (abbreviation) Abbreviation of Arkansas: a state of the United States.
    Synonyms:
    Ark., Ark
  2. (abbreviation) Abbreviation of Arunachal Pradesh: a state of India.
  3. (abbreviation) Abbreviation of American Revolution
    Synonyms:
    ARW, AWI

Noun (3) capitalized: Ar

Ar (plural Ars)

  1. Alternative letter-case form of ar.

Also used as

ar is also the alternative form of arr.

ar is also the obsolete spelling of are.

ar is also the alternative form of ah.

ar meaning in Hindi, Tamil, Marathi and Urdu

ar in Hindi

name of the letter R, r
आर ār

ar in Tamil

அர்

ar in Marathi

name of the letter R, r
आर ār

ar in Urdu

ار
More languagesFewer languages
ar in Bengali
আর ar
ar in Telugu
అర్
ar in Malayalam
അർ
ar in Kannada
ಅರ್
ar in Punjabi
ਅਰ
ar in Gujarati
અર
ar in Nepali
अर, एआर, एआर गर्न
ar in Tagalog
ar, ere
ar in Arabic
آر ʔār
ar in Malay
ar
ar in Indonesian
er
ar in Persian
ار er, آر âr
ar in Thai
อาร์ aa
ar in Vietnamese
e-rờ, rờ
ar in Myanmar
အာရ် ar

Synonyms of ar

Forms of ar

pluralars
pluralARs
pluralArs

Origin of ar

From Middle English *ar, arres pl, from earlier *er.

Abbreviation.

Words formed from ar

Phrases with ar

Words that rhyme with ar

48 more rhymesFewer rhymes

Questions about ar

What does ar mean?
Ar means the name of the Latin script letter R/r.
What is ar in Hindi?
Ar in Hindi is आर (ār). See Ar meaning in Hindi.
What part of speech is ar?
Ar can be a noun, an adjective or a proper noun.
How do you pronounce ar?
Ar is pronounced /ˈɑː/ (UK).
What is the plural of ar?
The plural of ar is ars.

Words near ar in the dictionary

  1. aquæducts
  2. aquæous
  3. aqvavit
  4. aqvavits
  5. Aqyar
  6. ar
  7. AR pupil
  8. AR pupils
  9. Ar Rayyan
  10. AR theory
  11. ar'

Source and license

Adapted from Wiktionary: ar (page history and authors); AR (page history and authors); Ar (page history and authors); ar (Tamil, IndicTrans2 machine translation) (model and license); ar (Urdu, IndicTrans2 machine translation) (model and license); ar (Telugu, IndicTrans2 machine translation) (model and license); ar (Malayalam, IndicTrans2 machine translation) (model and license); ar (Kannada, IndicTrans2 machine translation) (model and license); ar (Punjabi, IndicTrans2 machine translation) (model and license); ar (Gujarati, IndicTrans2 machine translation) (model and license); ar (Nepali, IndicTrans2 machine translation) (model and license). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Persent101-ar.wav.

Cite this entry: “ar.” Word.ws, https://word.ws/ar. Based on Wiktionary, CC BY-SA 4.0.