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 of ammunition

• defense
• protection
• weapon
• shield
• safeguard
• 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

The pops of ammunition exploding could be heard going off as the fire burned for hours along Hoods Mill Road. —Ricky Sayer, CBS News, 8 Dec. 2025

At the end of February 1942, the salvage operation was considered a success because of the thousands of ammunition rounds recovered. —Linda Dudik, San Diego Union-Tribune, 5 Dec. 2025

Prosecutors said investigators found in Davis’ apartment a short-barrel AR-15-style pistol loaded with 23 rounds of ammunition. —Rosalio Ahumada, Sacbee.com, 5 Dec. 2025

Laser systems offer the promise of low operating costs, rapid engagement speed, and virtually limitless ammunition compared with traditional air defense systems. —Kapil Kajal, Interesting Engineering, 4 Dec. 2025

Word History

Etymology

earlier, "military supplies," borrowed from Middle French amonition, probably variant of munition, monition 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