button mushroom, Agaricus bisporus

a surname originating as an occupation

Alternative form of 作る

Japanese-made kanji; kokuji / self-made kanji / arranging things into the shape of letters or characters

(idiomatic) "a fish who's found water" → In one's element, a duck to water.

absorbing (knowledge) very quickly and naturally

a European water vole (Arvicola amphibius)

Kyūjitai form of 水蒸気: steam; water vapor

aquifer (an underground layer of water-bearing porous stone, earth, or gravel)

Kyūjitai form of 水滸伝: Water Margin, one of China's Four Great Classical Novels