proper, right, reasonable

properness, rightness, reasonability

Tō-on, a Sino-Japanese kanji pronunciation layer; imported to Japan beginning in the mid-Heian period and ending in the Edo period. Uncommon. / (more specifically) The later subset of above.

a struggle

to struggle

(medicine) dialysis

authority (persons in command; specifically, government) / this or our 局 (kyoku, “office”) – post office (郵便局), broadcasting station (放送局), etc.

Bacillus subtilis subsp. natto, the bacteria used to make natto.

the present age; modern times

answer / answer sheet, exam paper