minisubmarine minisub • minitant · · · Info · Definitions · Synonyms · Characters · · minisubmarine · · Text Latin · · Script 13 · · Length 5 · · Syllables Definitions · · · (noun) submersible vessel for one or two persons; for naval operations or underwater exploration. Synonyms: minisub. · · Noun Definition 1 Synonyms · · · minisub · · Synonym 1 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073 u latin small letter u U+0075