defuse

verb

de·​fuse (ˌ)dē-ˈfyüz 

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

Witnesses told police that the soldiers tried to defuse the situation but that a brief fight broke out before the gunshots were fired from a passing pickup truck. —CBS News, 24 Feb. 2025

Authorities say police initially tried to defuse the situation. —Harrison Jones, USA TODAY, 22 Feb. 2025

Those bombs were identical and equipped with timers and bomb squads were able to defuse them. —Hadeel Al-Shalchi, NPR, 21 Feb. 2025

The rest of the first section is directed toward predicting behavior, defusing emotions and leveraging knowledge of someone’s triggers and personality types, including your own. —Amy Lindgren, Twin Cities, 1 Feb. 2025

Word History

First Known Use

1943, in the meaning defined at sense 1

Rhymes for defuse

• accrues
• accuse
• aircrews
• amuse
• bamboos
• breakthroughs
• canoes
• cashews
• chartreuse
• confuse
• construes
• ensues