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Definition of jambox
jambox
/ˈdʒæmˌbɑːks/
jam · box
Plural:jamboxes
jambox Lexical Profile
CEFR
C1
Grade
8
Tier
3
Usage
Rare
• noun
1
North American A large, portable, battery-operated radio and cassette or CD player with built-in speakers, especially one capable of playing music at high volumes.
Example
"He hoisted the heavy jambox onto his shoulder and blasted music for everyone on the block to hear."
Synonyms
View all synonyms for jamboxWord Origin & Etymology
A compound of 'jam' (slang for playing music loudly or enthusiastically) and 'box' (referring to the device's rectangular, bulky shape). The term emerged in the United States in the late 1970s and 1980s as a colloquial equivalent to 'boombox'.
Cite this Entry
Wordmom. (2026). Definition of Jambox. In Wordmom Dictionary. Retrieved Oct 13, 2026, from https://wordmom.com/dictionary/jambox