55 Moby Thesaurus words for "red light district":
   Bowery, Chinatown, East End, East Side, Little Hungary,
   Little Italy, West End, West Side, bagnio, barrio, bawdyhouse,
   black ghetto, blighted area, bordello, brothel, business district,
   cathouse, central city, city center, core, crib, den, den of vice,
   disorderly house, dive, downtown, ghetto, greenbelt,
   house of assignation, house of joy, house of prostitution,
   inner city, joint, midtown, outskirts, panel den, panel house,
   residential district, run-down neighborhood, shopping center,
   sink of iniquity, skid road, skid row, slum, slums, sporting house,
   stew, stews, suburbia, suburbs, tenderloin, tenement district,
   uptown, urban blight, whorehouse