English Reference

Word

fuse

US/ˈfjuz/

UK/fjˈuːz/

Definitions

01electrical safety

B2 · Upper Intermediate Countable noun Physics

n. a small safety part in an electrical device that breaks the circuit if the power is too high.

n. a safety device consisting of a strip of wire that melts and breaks an electric circuit if the current exceeds a safe level.

“The lights went out because a fuse blew in the kitchen.”

“The technician replaced the blown fuse after identifying a short circuit in the industrial cooling unit.”

Usage

Commonly used in the phrase 'to blow a fuse'.

Synonyms

02explosive ignition

B2 · Upper Intermediate Countable noun Military

n. a string or wire that carries fire to an explosive, like a bomb or firework.

n. a cord, tube, or mechanical device used to convey fire or a detonating spark to an explosive charge.

“He lit the fuse and ran to a safe distance before the fireworks started.”

“The demolition team carefully inspected the fuse to ensure the controlled explosion would occur exactly on schedule.”

Synonyms

03temper

C1 · Advanced Countable noun Informal

n. your ability to stay calm without getting angry.

n. a person's tendency to lose their temper, typically used in the idiom 'short fuse'.

“Be careful what you say to him; he has a very short fuse.”

“The manager was known for his short fuse, often reacting with disproportionate anger to minor administrative errors.”

Synonyms

04to join together

B2 · Upper Intermediate

v. to join two or more things together so they become one, often using heat.

v. to join or blend different things into a single entity, often through melting or intense heat.

“The two companies decided to fuse their technology departments into one team.”

“The artist used extreme heat to fuse glass and metal into a single, striking sculpture.”

Synonyms

Antonyms

05nuclear fusion

C1 · Advanced Science Technical

v. when atoms join together to create a lot of energy.

v. to undergo or cause to undergo nuclear fusion, where atomic nuclei combine to form a heavier nucleus.

“Inside the sun, hydrogen atoms fuse together to create helium and light.”

“Scientists are still working on a way to make atoms fuse in a controlled environment to produce clean energy.”

Synonyms

Antonyms

Word family

NOUN

fuse(B2)

Related words

Idioms

Domains

AstronomyMilitaryMiningPhysics

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Frequent
Level
B2 · Upper Intermediate
Updated

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English Reference