Godan verb, intransitive verb

  1. to freeze, to become frozen, to freeze over.

Variations

Pronunciation Kanji Kana Is Common
 
凍る こおる
 
氷る こおる

Contained Kanji Breakdown

frozen, congeal, refrigerate
トウ こお.る こご.える (8th, N2)
two-stroke water radical or ice radical (no. 15)
ヒョウ こおり (Kentei 1)
east
トウ ひがし しの (2nd, N5)
tree, wood
き モク こ- (1st, N5)
day, sun, Japan
ひ にっ ニチ (1st, N5)