(idiomatic) learn something (from someone serving as an example), follow in someone's footsteps

to try to save a little only to lose a lot; to spoil the ship for a ha'p'orth of tar; to be penny wise and pound foolish

to hide one's talents and conceal their existence

(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

hostile takeover

experimental study

impractical; unpractical

unrealistic