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

Mehrzad Asadi Eidivand, an Iranian national, was accused of possessing firearms and ammunition while being in the United States unlawfully. —Elena Santa Cruz, AZCentral.com, 29 Aug. 2025

Video posted by the shooter showed an AR-style rifle and other guns, as well as multiple ammunition magazines with messages written on them. —Marc Santia, NBC news, 28 Aug. 2025

The person, who is speaking off camera while handling ammunition, said that people should vote for the gun rights activist for president. —Meredith Deliso, ABC News, 28 Aug. 2025

Associated Press What to Know About Robin Westman Videos on a YouTube channel that police believe may have been run by the shooter display weapons, ammunition, and lists of past mass shooters. —Gabe Whisnant, MSNBC Newsweek, 28 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