Word · 単語
硬化
Reading こうか
hardening
hardening · vulcanization · vulcanisation · sclerosis · curing · hardening (of attitude, stance, etc.) · stiffening · toughening · upturn (in the market) · firming up
N3
JLPT
—
strokes
#17917
frequency
Not started
Mastered counts as known everywhere (frontier, map, extension) but never appears in the quiz again. New wipes the review history for this item.