district; quarter; enclosure; area enclosed by earthwork; red-light district; wide and empty
contour; outline; summary; outline; looks; features
(licensed) red light district
castle; citadel; fortress; castle walls; enclosure
outer fence; outer enclosure; outer block; outline; contour
purification; cleaning up; purging
sociolect or secret language used by prostitutes in red-light districts (Edo period); vulgar words used by prostitutes (Edo period)
sociolect or secret language used by prostitutes in red-light districts (Edo period); vulgar words used by prostitutes (Edo period)
armored enclosure for guns on a warship; casemate