light source (source of illumination)

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

(Internet slang, dated) Windows (an operating system)

a light, beam, illumination / a gleam, glow, ray / a glimmer, shine, sparkle / a luster/lustre, polish, sheen / glory, influence, power / a glimmer, gleam / positive aspect

window

window / (regional, dialect, Etchū region) a deep gap in a mountain ridge (so called for the way the wind blows through, like a window)

nature / spontaneity

natural / spontaneous

naturally / spontaneously / rarely / coincidentally

bright / light / shine