tubae tuba • tubage · · · Info · Definitions · Synonyms · Characters · · tubae · · Text Latin · · Script 5 · · Length Definitions · · · (noun) the lowest brass wind instrument. Synonyms: bass horn, sousaphone, tuba. · · Noun Definition 1 Synonyms · · · bass horn · · Synonym 1 sousaphone · · Synonym 2 tuba · · Synonym 3 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 t latin small letter t U+0074 u latin small letter u U+0075