sound truck sound track • sound unit · · · Info · Definitions · Characters · · sound truck · · Text Common · · Latin · · Scripts 11 · · Length 2 · · Syllables Definitions · · · (noun) a truck equipped with a loudspeaker and used for advertising. Synonyms: sound truck. · · Noun Definition 1 Characters · · space U+0020 c latin small letter c U+0063 d latin small letter d U+0064 k latin small letter k U+006B n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075