Simple Definition of trombone

from our Learner's Dictionary

trombone

noun

plural trombones
: a large brass musical instrument that you blow into and that has a tube that you slide in and out to play different notes

Cite this Entry

“Trombone.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/trombone. Accessed 15 Apr. 2026.

More from Merriam-Webster on trombone

More from Merriam-Webster