dark; dim / sombre; gloomy

Onomatopoeia for a light turning on

change one's methods or ways of thinking

switch, a device to turn electric current on and off or direct its flow / (rail transport) switch of a railroad, point of a railroad / a change in method or thinking / (computing) network switch

bright, light, luminous / merry, cheerful

bright, light, luminous / merry, cheerful

room (of a house or hotel), chamber, apartment, flat / (sumo) a stable where rikishi live and train together under a shisho oyakata (stable master)

potential of 入る (hairu)

to put (something) in / to admit (someone) in / to tuck in (clothing)

dark / blackish / foolish / secret; covert / memorize; recite from memory