JMdict: 1194360

炬燵 【こたつ】

  1. [n] kotatsu; table over an electric heater (orig. a charcoal brazier in a floor well) with a hanging quilt that retains heat
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Kanji in this word:

Kanji Meanings On Readings Kun Readings Grade
Torch, Signal Fire コ, キョ
Foot Warmer, (kokuji) タツ

Words often seen with this one: (experimental feature)

こと (22), この (16),  (15), 寒い (12),  (11), いい (11),  (10), ダメ (10)