reply, response / answer

(rare) a practical joke, prank

(obsolete, phonology) any of the morae with an onset consonant listed on the 五十音図 (gojūonzu, literally “chart of the fifty sounds”), such as か (ka) or し (shi), but not あ (a) or い (i), and not が (ga...

Kyūjitai form of 蘭学: study of Western knowledge (literally, Dutch studies)