Ar-15

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    A lightweight, semi-automatic rifle, based on the original design of the ArmaLite AR-15.

    "Not long after it started selling M-16s to the military, Colt began marketing the semi-automatic AR-15 to civilians."

Synonyms

All synonyms
m-16

Example

More examples

"Not long after it started selling M-16s to the military, Colt began marketing the semi-automatic AR-15 to civilians."

Etymology

Initialism of ArmaLite Rifle, which was named after the company that originally designed the weapon.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.