red-light district
noun
an area or district in a city in which many houses of prostitution are located.
Origin of red-light district
First recorded in 1890–95; allegedly so called because brothels displayed red lights
Words nearby red-light district
red-lead putty,
red-legged partridge,
red-letter,
red-letter day,
red-light,
red-light district,
red-osier dogwood,
red-pencil,
red-short,
red-shouldered hawk,
red-spotted purple