contour; outline; summary; outline; looks; features
district; quarter; enclosure; area enclosed by earthwork; red-light district
castle; citadel; fortress; castle walls; enclosure
outer fence; outer enclosure; outer block; outline; contour
(licensed) red light district
fortified city; walled city
outline; contour line; border line
auxiliary organization (organisation); extra-departmental body; fringe organization
common cuckoo (Cuculus canorus)
purification; cleaning up; purging
lesser cuckoo (Cuculus poliocephalus)
illusory contour; subjective contour
thoracic outlet syndrome; TOS
walled settlement; walled town
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)
outer ring road; orbital road
great spotted cuckoo (Clamator glandarius)
gate of a castle's outer enclosure; outer gate
Asian koel (Eudynamys scolopacea)