English Reference

Word

trombone

Phoneticstrom·bone

US/tɹɑmˈboʊn/

UK/tɹɒmbˈəʊn/

Definitions

01musical instrument

B1 · Music

n. a large brass musical instrument that you play by blowing into it and moving a long sliding tube to change the notes.

n. a brass instrument consisting of a long cylindrical metal tube with two turns and a telescopic slide that varies the pitch.

“He played the trombone in the school jazz band every Friday night.”

“The composer wrote a challenging solo for the tenor trombone, requiring the performer to execute rapid slide positions with perfect intonation.”

Synonyms

brass instrument

02lighting support

C1 · Theatre

n. a metal support used on a film set to hold lights, which can be extended like the musical instrument.

n. an extendable support bracket used for mounting lighting fixtures to a studio grid or set wall.

“The crew attached a heavy lamp to the trombone to light the actor from above.”

“The gaffer requested two additional trombones to extend the backlight further over the set without placing stands in the shot.”

Technical

Synonyms

extension armlighting mount

03to zoom a lens

C1 · Computing

v. to move a camera's zoom lens in and out very quickly or too much.

v. to rapidly and repeatedly adjust a zoom lens; often used pejoratively to describe amateurish or excessive focal length changes.

“The director told the camera operator to stop tromboning the lens during the scene.”

“The documentary was criticized for its distracting style, as the cinematographer continued to trombone the lens throughout the emotional interviews.”

Slang · Informal

Synonyms

04to route a signal

C2 · Computing

v. to send a signal back to a central point before it goes to its final destination.

v. to route a telecommunications signal back to a central switching point before forwarding it to its ultimate destination.

“The call had to trombone through the main server before reaching the local office.”

“Network efficiency decreased significantly because the data packets were forced to trombone through the legacy switch in the headquarters.”

Technical

Synonyms

rerouteloop

Real-World Examples

“Low woodwind and trombones (together with a nagging siren) may attempt to pull us under, but surging life-force in brass-gilded climaxes pushes valiantly back.”
The Guardian · 25 Sept 2026

Etymology

Borrowed from Italian trombone, from tromba (“trumpet”) + -one (augmentative), literally “large trumpet”. The telecommunications sense alludes to the shape of the musical instrument.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Domains

FilmTelevision

This entry

Level
C1 · Advanced
Frequency
Occasional
Updated

Scan code

englishreference.com/q/trombone

English Reference