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

The Los Angeles Times reported that decision followed conversations between the two sides to figure out how to defuse the situation. —Ishani Desai, Sacbee.com, 22 Sep. 2025

On Saturday morning, experts had successfully defused the device. —Sujita Sinha, Interesting Engineering, 21 Sep. 2025

Thousands of people were forced to evacuate a bustling neighborhood of Hong Kong overnight while experts sweated through the delicate work of defusing an undetonated nearly 5-foot, 1,000-pound bomb left over from World War II. —Brie Stimson, FOXNews.com, 20 Sep. 2025

It has most commonly been discussed as a procedural tactic to defuse the threat of a filibuster slowing down or blocking the majority party’s agenda. —Connor Greene, Time, 12 Sep. 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