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AR

noun C2
  1. An AR-15 personal semi-automatic rifle, M-16 assault rifle, M-4 carbine, derivative or related gun; the Armalite AR family and derivatives. (countable)
  2. An assault rifle or automatic rifle. (countable, informal)

Plural ARs

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From the library

...ar † Spada.”
The Count of Monte Cristo, p. 196 · C1
“Cæs...ar † Spada.”
The Count of Monte Cristo, p. 196 · C1

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Words, meanings, pronunciations and translations from Wiktionary (CC BY-SA 4.0); how common each word is from wordfreq. Made into this dictionary by FluentPlex.