tunnage tunna • tunna smjors · · · Info · Definitions · Synonyms · Characters · · tunnage · · Text Latin · · Script 7 · · Length 2 · · Syllables Definitions · · · (noun) a tax imposed on ships that enter the US; based on the tonnage of the ship. Synonyms: tonnage, tonnage duty. · · Noun Definition 1 Synonyms · · · tonnage · · Synonym 1 tonnage duty · · Synonym 2 Characters · · a latin small letter a U+0061 e latin small letter e U+0065 g latin small letter g U+0067 n latin small letter n U+006E t latin small letter t U+0074 u latin small letter u U+0075