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.
Trump could begin orchestrating a new trade deal while also trying to defuse the emerging nuclear weapons rivalry. J. Tedford Tyler, Time, 17 May 2025 But since the late 1990s, whenever India and Pakistan approached the brink of war, a familiar de-escalation playbook unfolded: intense diplomacy, often led by the United States, would help defuse tensions. Farah N. Jan, The Conversation, 10 May 2025 Still, the fact that Beijing and Washington are finally talking has raised hopes that the tension between them could be defused and that the tariffs could ultimately be lowered. Alan Rappeport, New York Times, 10 May 2025 Crawford recalled that 50 Cent himself stepped in to defuse the tension. Preezy Brown, VIBE.com, 24 Apr. 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 24 May. 2025.

More from Merriam-Webster on defuse

Last Updated: - Updated example sentences
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