陥かん没ぼつ湖こMeaningsNoun1. lake formed by ground depression (esp. by tectonic fault or in a caldera)Kanji used陥cave in没go under湖lakePitch accentかんぼつこかんぼつこComposed of陥かん没ぼつcave-in; collapse; sinking; depression (e.g. of the skull); subsidenceNoun湖こlake (in place names)Suffix