rapid transit rapid-speaking • rapid-transit · · · Info · Definitions · Synonyms · Characters · · rapid transit · · Text Common · · Latin · · Scripts 13 · · Length 4 · · Syllables Definitions · · · (noun) an urban public transit system using underground or elevated trains. Synonyms: rapid transit, mass rapid transit. · · Noun Definition 1 Synonyms · · · mass rapid transit · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 d latin small letter d U+0064 i latin small letter i U+0069 n latin small letter n U+006E p latin small letter p U+0070 r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074