ar

Fetched 2026-10-26 (cache).

Datamuse reports no synonyms or antonyms for this word.

Adjective

1. {{lb|en|statistics}} {{init of|en|autoregressive}}.

Noun

1. {{C|en|Firearms}} {{lb|en|countable|weaponry}} An [[AR-15]] personal [[semi-automatic]] [[rifle]], [[M-16]] [[assault rifle]], [[M-4]] [[carbine]], derivative or related gun; the Armalite AR family and derivatives.
2. {{C|en|Firearms}} {{lb|en|countable|weaponry|informal}} An [[assault rifle]] or [[automatic rifle]].
3. {{lb|en|uncountable|or|plurale tantum|accounting}} {{init of|en|accounts receivable}}.
4. {{lb|en|philately|post}} {{init of|en|[[acknowledgment]] of [[receipt]]}}.
5. {{senseid|en|age regression}} {{C|en|Age regression}} {{lb|en|agere|paraphilia}} {{init of|en|[[age regression]]}}.
6. {{senseid|en|Q254183}} {{lb|en|uncountable|computing}} {{init of|en|augmented reality<id:Q254183>}}.
7. {{senseid|en|alternate reality}} {{lb|en|fandom}} {{init of|en|[[alternate]] [[reality]]}}.
8. {{lb|en|countable|sports|US}} {{init of|en|[[American]] [[record]]}}, national record for the United States.
9. {{init of|en|[[administrative]] [[rule]],[[administrative]] [[regulation]]}}.
10. {{lb|en|biochemistry}} {{init of|en|[[androgen]] [[receptor]]}}.
11. {{lb|en|sports|countable}} {{init of|en|[[area]] [[record]]}}, best achievement among those by persons from a given continent.
12. {{lb|en|crime}} {{init of|en|[[armed]] [[robbery]]}}.

Proper noun

1. {{place|en|@abbr of:Arkansas|state|c/US}}.
2. {{place|en|@abbr of:Arunachal Pradesh|state|c/India}}.
3. {{C|en|American Revolution}} {{abbreviation of|en|American Revolution}}

Source: Wiktionary · CC BY-SA 4.0 (Wiktionary dump) · cached copy, not a rewrite.