insurgency

noun

in·​sur·​gen·​cy in-ˈsər-jən(t)-sē How to pronounce insurgency (audio)
plural insurgencies
Synonyms of insurgencynext
1
2
: the quality or state of being insurgent
specifically : a condition of revolt against a government that is less than an organized revolution and that is not recognized as belligerency

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Insurgencies fall into the category of "irregular warfare", since an insurgency normally lacks the organization of a revolution, even though it has the same aims. Revolutions often begin within a country's armed forces, whereas insurgencies often arise in remote areas, where they gain strength slowly by winning the confidence of rural populations. An insurgency may be based on ethnic or religious identity, or its roots may be basically political or economic. Since insurgencies are rarely strong enough to face a national army head-on, insurgents (often called guerrillas) tend to use such tactics as bombing, kidnapping, hostage taking, and hijacking.

Examples of insurgency in a Sentence

there always seems to be insurgency of some type in that troubled country
Recent Examples on the Web
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Mali, along with its neighbors Burkina Faso and Niger, for over a decade has battled an insurgency fought by armed groups, including some allied with Al Qaeda and Islamic State. Molly Quell, Los Angeles Times, 28 Apr. 2026 Nigeria, which is Africa’s most populous country, is battling a complex security crisis, especially in the north, where there is a decade-long insurgency. ABC News, 27 Apr. 2026 These dissident fighters – which include splinter groups who fight among themselves – have continued a low-level insurgency in some rural parts of Colombia. Annabella González, CNN Money, 26 Apr. 2026 Former French colonies and once close Western partners, these countries have since distanced themselves from the Economic Community of West African States (ECOWAS) and continue to face persistent jihadist insurgencies. Jewel Bright, NPR, 25 Apr. 2026 See All Example Sentences for insurgency

Word History

First Known Use

1803, in the meaning defined at sense 2

Time Traveler
The first known use of insurgency was in 1803

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Cite this Entry

“Insurgency.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/insurgency. Accessed 1 May. 2026.

Kids Definition

insurgency

noun
in·​sur·​gen·​cy in-ˈsər-jən-sē How to pronounce insurgency (audio)
plural insurgencies

Legal Definition

insurgency

noun
in·​sur·​gen·​cy in-ˈsər-jən-sē How to pronounce insurgency (audio)
plural insurgencies
: the quality or state of being insurgent
specifically : a condition of revolt against a recognized government that does not reach the proportions of an organized revolutionary government and is not recognized as belligerency

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