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 Four helicopters will monitor the sky, with officers trained in tracking and defusing drones. Ségolène Le Stradic, New York Times, 27 Apr. 2024 United Methodist delegates have overwhelmingly endorsed a constitutional amendment seen by advocates as a way of defusing debates over the role of LGBTQ people in the church by giving rule-making autonomy to each region of the international church. CBS News, 26 Apr. 2024 More than 100 students were arrested at Columbia University last week, and the prestigious university has decided to cancel in-person classes in an attempt to defuse tensions. Sarah Rumpf-Whitten, Fox News, 24 Apr. 2024 But before things get too disastrous, Roger (David Alan Grier) appears and magically defuses the situation. Jourdain Searles, The Hollywood Reporter, 22 Jan. 2024 The move was intended to defuse growing pressure in Congress. Edward Wong, New York Times, 6 Apr. 2024 The release is aimed at defusing political tensions that have ratcheted up since Sall last month postponed the vote that was originally scheduled for Feb. 25. Katarina Hoije, Bloomberg.com, 15 Mar. 2024 This could help defuse many of the rumors and speculation in the media and internet that tends to come hand in hand with a volcanic crisis. Erik Klemetti, Discover Magazine, 29 Feb. 2024 When a British aircraft carrier is attacked and the attacker is unclear, Michael McKean’s President Rayburn sends Russell’s character, Kate Wyler, to London against her wishes to defuse a situation that could quickly escalate into a world war. Julie Tremaine, Peoplemag, 10 Feb. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'defuse.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1943, in the meaning defined at sense 1

Time Traveler
The first known use of defuse was in 1943

Dictionary Entries Near defuse

Cite this Entry

“Defuse.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/defuse. Accessed 2 May. 2024.

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