defuse

verb

de·​fuse (ˌ)dē-ˈfyüz How to pronounce defuse (audio)
defused; defusing; defuses

transitive verb

1
: to remove the fuse from (a mine, a bomb. etc.)
2
: to make less harmful, potent, or tense
defuse a crisis

Did you know?

defuse or diffuse?

Many people find it difficult to remember the difference between defuse and diffuse, and when faced with the need for one of these words simply grab whichever one first comes to mind. But it needn’t be this way: the meanings of these two are quite a bit different, and there is a simple way to differentiate between them. Defuse is formed by adding the prefix de- to the word fuse; you are removing the fuse (either literally or figuratively) when you defuse a situation, much as defanging something entails removing the fangs. Diffuse, when used as a verb, tends to carry meanings such as “spread” or “scatter.” Additionally, diffuse is the only one which may be found used as an adjective.

Examples of defuse in a Sentence

Skilled negotiators helped defuse the crisis.
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.
Rep Raja Krishnamoorthi, an Illinois Democrat, in a statement to CBS News praised the office's work in defusing tensions between minority communities and the government and expressed concern about reports that it would be cut. Scott MacFarlane, CBS News, 6 Apr. 2025 What was for Randolph a crisis to defuse and for Washington one to avoid was for Patrick Henry an opportunity. Andrew Lawler, Smithsonian Magazine, 2 Apr. 2025 The device was deemed too precarious to defuse by hand, so a sophisticated metal robot was used. Jim Clash, Forbes.com, 1 Apr. 2025 And Beijing is well aware that Japan’s investment into the U.S. economy helped defuse the two countries’ 1980s trade tensions. Brendan Kelly, Foreign Affairs, 7 Mar. 2025 See All Example Sentences for defuse

Word History

First Known Use

1943, in the meaning defined at sense 1

Time Traveler
The first known use of defuse was in 1943

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Cite this Entry

“Defuse.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/defuse. Accessed 16 Apr. 2025.

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