Word空洞くうどうListenYour browser has no Japanese voice, so Listen is not available.How to add a Japanese voiceCommonMeaningsNouncavity; hollow; cave; cavernNo-adjectivehollowOther forms空胴Kanji in this word空洞Dictionary data: JMdict and KANJIDIC2, property of the EDRDG, used under its licence (CC BY-SA 4.0).(opens in a new tab)