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warfare

American  
[wawr-fair] / ˈwɔrˌfɛər /

noun

  1. the process of military struggle between two nations or groups of nations; war.

  2. armed conflict between two massed enemies, armies, or the like.

  3. conflict, especially when vicious and unrelenting, between competitors, political rivals, etc.


warfare British  
/ ˈwɔːˌfɛə /

noun

  1. the act, process, or an instance of waging war

  2. conflict, struggle, or strife

"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

Other Word Forms

Etymology

Origin of warfare

1425–75; late Middle English werefare, i.e., a faring forth to war; see war 1, fare

Explanation

When two countries fight violently with each other, the conflict is called warfare. Whenever a group engages in war or violence, it can be described with the noun warfare, which is another way of saying "the act of war." Terrorists might use guerrilla warfare tactics against their enemies, and governments may resort to warfare to put down revolutions. The word war originally comes from a Germanic root, werso, which means "to perplex or confuse."

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Vocabulary lists containing warfare

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.

Warfare is going through another transition, one placing new, if not central, emphasis on drones, networks, and A.I.

From Slate • Jun. 5, 2026

Developer Infinity Ward said the game will be "grounded in the military authenticity Modern Warfare is known for".

From BBC • May 29, 2026

It would be the dark and brooding Germ Warfare Shot.

From Los Angeles Times • May 25, 2026

Naval Mine and Antisubmarine Warfare Command, said there could be 18 littoral combat ships available to clear mines if not needed for other tasks.

From The Wall Street Journal • Mar. 17, 2026

It is the opening of John Keegan’s 1993 magnum opus, A History of Warfare: War is not the continuation of policy by other means.

From "The Sense of Style" by Steven Pinker

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