lassa lass • lassa fever · · · Info · Definitions · Characters · · lassa · · Text Latin · · Script 5 · · Length 2 · · Syllables Definitions · · · (noun) the sacred city of Lamaism; known as the Forbidden City for its former inaccessibility and hostility to strangers. Synonyms: Lhasa, Lassa, capital of Tibet, Forbidden City. · · Noun Definition 1 Characters · · a latin small letter a U+0061 l latin small letter l U+006C s latin small letter s U+0073