AR.
An AR-15 personal semi-automatic rifle, M-16 assault rifle, M-4 carbine, derivative or related gun; the Armalite AR family and derivatives.
Meaning & usage
An AR-15 personal semi-automatic rifle, M-16 assault rifle, M-4 carbine, derivative or related gun; the Armalite AR family and derivatives.
An assault rifle or automatic rifle.
Initialism of accounts receivable.
Initialism of acknowledgment of receipt.
Initialism of age regression.
Initialism of augmented reality.
Initialism of alternate reality.
Initialism of American record, national record for the United States.
Initialism of administrative rule or administrative regulation.
Initialism of androgen receptor.
Initialism of area record, best achievement among those by persons from a given continent.
Initialism of armed robbery.
Initialism of artificial respiration.
Initialism of aspect ratio.
Initialism of assembly resolution.
Initialism of atmospheric river.
Initialism of aerial refueling.
Where this word comes from
Abbreviation.
Abbreviation of Arkansas: a state of the United States.
Abbreviation of Arunachal Pradesh: a state of India.
Abbreviation of American Revolution
Where this word comes from
Abbreviation.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.