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ordnance

American  
[awrd-nuhns] / ˈɔrd nəns /

noun

  1. cannon or artillery.

  2. military weapons with their equipment, ammunition, etc.

  3. the branch of an army that procures, stores, and issues, weapons, munitions, and combat vehicles and maintains arsenals for their development and testing.


ordnance British  
/ ˈɔːdnəns /

noun

  1. cannon or artillery

  2. military supplies; munitions

  3. a department of an army or government dealing with military supplies

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of ordnance

First recorded in 1620–30; syncopated variant of ordinance

Explanation

Ordnance is another word for military supplies, like guns, rockets, or armor. When a country is at war, it needs a lot of ordnance. The average person has probably never heard of ordnance. In fact, an ordinary person would have some explaining to do if they had ordnance, because it refers to military supplies. The word ordinance for “command” lost an i in the 1500’s and became ordnance, meaning “military materials.” Both words go with war — a command to shoot requires ordnance, or something to shoot with. Ordnance helps soldiers fight and protect them. You can’t go to war without ordnance.

Keep Reading on Vocabulary.com

Vocabulary lists containing ordnance

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The rest of us would like to live tolerantly in some form or fashion without using nuclear ordnance on each other.

From Salon • Apr. 10, 2026

Hartlepool Coastguard Rescue Team said "while it is very rare to find unexploded ordnance on a visit to the beach, bad weather and high tides can expose these objects".

From BBC • Apr. 8, 2026

Instead, one of the men took the ordnance home and either left it in their truck overnight, or brought it into their house, the claim alleges.

From Los Angeles Times • Mar. 25, 2026

The air defense ordnance fell in an open area in southern Turkey’s Hatay province, causing no injuries or damage, it added.

From The Wall Street Journal • Mar. 4, 2026

Hereupon the president was contented the fort should be palisadoed, the ordnance mounted, his men armed and exercised.

From "Blood on the River" by Elisa Carbone