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
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.
But reports of a potential joint military operation involving the US, Colombia and Venezuela also raised the prospect that the ELN could finally be dismantled after more than 60 years of insurgency. Emma Bussey, FOXNews.com, 16 Jan. 2026 Iraq should also serve as a warning for the PLA, as post-decapitation insurgencies last for many years after. Christopher McFadden, Interesting Engineering, 10 Jan. 2026 In April, 1992, Fujimori asserted full autocratic powers and drastically stepped up the counter-insurgency operation. Paul Elie, New Yorker, 5 Jan. 2026 An insurgency that ties the United States down in Venezuela would delight Beijing and Russia. Eliot A. Cohen, The Atlantic, 4 Jan. 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 28 Jan. 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

More from Merriam-Webster on insurgency

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