iron curtain (a barrier that greatly hinders interaction or exchange)

a male given name

(metallurgy) galvanized iron

(music, rare) Synonym of オルゴール (orugōru, “music box”)

Synonym of 伽耶琴 (Kaya-kin, “gayageum”)

He who is poorly versed in koto, go, calligraphy or painting is not a person of taste.

(mining) bauxite

(figuratively) vulgar, tasteless behaviors that spoil elegant or beautiful things

showing unyielding diligence in one's studies; wearing a hole through one's metal inkstone from constant studying