ammo
UK: ˈæməʊ | US: ˈæmoʊ
n. informal abbreviation for ammunition (projectiles like bullets or shells used in weapons).
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The word ammo emerged in the early 20th century as a clipped form of ammunition, with the playful addition of the suffix -o (common in slang, e.g., kiddo, weirdo). Ammunition itself derives from French munition (military supplies), via Latin munitionem (defense/fortification), from munire (to fortify). The truncation reflects soldiers’ or civilians’ colloquial efficiency in referencing weapon supplies.
The soldiers checked their ammo before the mission.
We’re running low on ammo—call for resupply!
He loaded the rifle with fresh ammo.
Airsoft guns use non-lethal plastic ammo.
The documentary explored how ammo production scaled during the war.