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Kanji
JLPT N5
JLPT N4
JLPT N3
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JLPT N1
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Jōyō kanji
9 strokes
den, cave, excavation
Kun
ほら
On
ドウ
JLPT N1
Radicals
口
汁
冂
一
Common words
空洞
【くうどう】
cave, hollow, cavity, hollow
洞
【ほら】
hollow, cavity, hole, cave
洞察
【どうさつ】
discernment, insight
洞窟
【どうくつ】
cave, cavern, grotto
鍾乳洞
【しょうにゅうどう】
limestone cave, limestone cavern
洞穴
【ほらあな】
cave, cavern, den, grotto
Kanji
洞