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せっかいどう
Meanings
Noun
1. limestone cave
Alt. forms
石
せっ
灰
かい
洞
どう
せっかいどう
Pitch accent
せ
っか
いどう
Composed of
せっかい
lime; quicklime; caustic lime
どう
sinus; cavity; antrum; neighborhood (administrative division in North Korea)