noun
ammo
A-moh
noun
1
Bullets, shells, or other material fired from weapons; ammunition.
"They stocked up on ammo before the hunting trip."
"The soldier checked how much ammo was left in his pack."
2
Informal: chips or cash used for gambling, especially at a casino.
"He brought plenty of ammo for the poker table."
How to Use Ammo
Learner’s notesIn plain EnglishThe casual, everyday word for ammunition — bullets and the like.
Common pairings
out of ammo
stock up on ammo
live ammo
Word Forms
ammoed past tense, ammos plural, ammos singular
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Etymology
A shortened form of "ammunition", which traces back through French to the Latin munitio, "fortification, defense".