warfare

noun

war·​fare ˈwȯr-ˌfer How to pronounce warfare (audio)
1
: military operations between enemies : hostilities, war
also : an activity undertaken by a political unit (such as a nation) to weaken or destroy another
economic warfare
2
: struggle between competing entities : conflict

see also biological warfare, chemical warfare, cyber warfare, germ warfare, trench warfare

Examples of warfare in a Sentence

that troubled household seems to be almost constantly in a state of warfare companies engaged in constant warfare for dominance in the market for smart phones and tablets
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Russian and Ukrainian drones have been known to go off course during long-range strikes due to electronic warfare measures employed by the combatants. Will Gretsky, ABC News, 10 Sep. 2025 The introduction of fiber-optic drones has reduced the effectiveness of traditional jammers, since these systems are resistant to electronic warfare. Vikram Mittal, Forbes.com, 9 Sep. 2025 The initiative seeks to develop advanced position, navigation, and timing (PNT) systems that allow unmanned aircraft to operate and maneuver collectively without relying on the Global Positioning System (GPS), which has become increasingly vulnerable to electronic warfare. Kapil Kajal, Interesting Engineering, 8 Sep. 2025 The devastating power of these relatively inexpensive unmanned aerial vehicles (UAVs) is reshaping the tactics of warfare. Brian Walsh, Fortune, 7 Sep. 2025 See All Example Sentences for warfare

Word History

Etymology

Middle English, from werre, warre war + fare journey, passage — more at fare

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of warfare was in the 15th century

Browse Nearby Words

Cite this Entry

“Warfare.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/warfare. Accessed 10 Sep. 2025.

Kids Definition

warfare

noun
war·​fare ˈwȯr-ˌfa(ə)r How to pronounce warfare (audio)
-ˌfe(ə)r
1
a
: military fighting between enemies : war
b
: activity undertaken by one country or group to weaken or destroy another
economic warfare
2
: a struggle between competitors : conflict
industrial warfare

More from Merriam-Webster on warfare

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