WordReference Random House Learner's Dictionary of American English © 2025
ˈboom ˌbox or ˈboomˌbox,n. [countable]
WordReference Random House Unabridged Dictionary of American English © 2025- a large, powerful radio or combination radio and cassette player that can be carried around.
boom′ box′,
- Informal Termsa large, powerful portable radio and often CD or cassette player.
- 1980–85