働き者: hard worker, busy bee

Kyūjitai form of 洗脳: brainwashing

reckless, with abandon, without plan, completely at random

(rare) a rice tub: a traditional wooden and hooped tub for holding cooked grain (usually rice) / an oblong, an oval, an oval shape / (archaic) a 小判 (koban, “oval gold coin”) or similarly shaped coin