remote control, remote operation (doing something from a distance)

(military, of the Imperial Japanese Navy) a warrant officer

perspicacious, clear-eyed, clear-sighted, intelligent, wise

The Pillow Book

grass / weed

window

hard

(mathematics) geometrical

"Historical kana usage", a prescriptive method of using kana to write Japanese. Devised in the Edo period by Keichū (契沖) and taught in schools until 1946, it aims to be etymologically faithful and reflects earlier stages of the language (Heian period and earlier).

humanitarian