mumbai mum • mumble · · · Info · Definitions · Characters · · mumbai · · Text Latin · · Script 6 · · Length 2 · · Syllables Definitions · · · (noun) a city in western India just off the coast of the Arabian Sea; India's 2nd largest city (after Calcutta); has the only natural deep-water harbor in western India. Synonyms: Mumbai, Bombay. · · Noun Definition 1 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 i latin small letter i U+0069 m latin small letter m U+006D u latin small letter u U+0075