ammunition

noun

am·​mu·​ni·​tion ˌam-yə-ˈni-shən 

1

a

: the projectiles with their fuses, propelling charges, or primers fired from guns

b

: cartridges

c

: explosive military items (such as grenades or bombs)

2

: material for use in attacking or defending a position

ammunition for the defense lawyers

Synonyms

• defense
• protection
• shield
• safeguard
• weapon
• wall

Examples of ammunition in a Sentence

The troops were supplied with weapons and ammunition.

be certain that all of your accusations are true, lest you just give them ammunition to claim that all of them are false

Recent Examples on the Web

During the tow, a live 5.7mm caliber round of ammunition was found next to the vehicle’s rear passenger side tire. —Pj Green, Kansas City Star, 14 Aug. 2025

The Vinson used its fighter jets to attack targets in Yemen — including weapons, ammunition and infrastructure — and Houthi leadership. —Gary Robbins, San Diego Union-Tribune, 12 Aug. 2025

She was found guilty Aug. 12 at trial of conspiracy to murder, possession of a firearm with intent to cause fear of violence and an offense relating to the importation of ammunition into the UK. —Chris Ramirez, jsonline.com, 12 Aug. 2025

The images show rounds of ammunition flew just above a line of office cubicles where employees sit. —Dalia Faheid, CNN Money, 10 Aug. 2025

Word History

Etymology

obsolete French amunition, from Middle French, alteration of munition

First Known Use

1607, in the meaning defined at sense 1a

Rhymes for ammunition

• abolition
• acquisition
• admonition
• apparition
• apposition
• coalition
• competition
• composition
• definition
• deglutition
• demolition
• deposition

Kids Definition

ammunition

noun

am·​mu·​ni·​tion ˌam-yə-ˈnish-ən 

1

a

: objects (as bullets) fired from guns

b

: explosive objects (as bombs) used in war

2

: material that may be used in attacking or defending a position

results of the study provided more ammunition