room rent

at-home clothes

(Internet slang) dirty room

an adult son residing with his parents; generally has not yet or can not come into family inheritance / a female servant working in a daimyō, ōoku, or other high-ranking house

portrait of a sumo tournament champion

kowtow

A triangular white cloth headdress placed on the forehead to signify a ghost in traditional Japanese theatre and artwork. Also known as a tenkan.

(swords) an inscription where a blade is shortened and a rectangular metal piece bearing the original inscription is cut out from the removed portion and embedded in the new tang

(historical) sangaku (ema on which is written an original maths (和算) problem and solution)

calligraphy written on a frame and hung on a gate or palace