おと 落とし戸 LinksSentence search for 落とし戸Sentence search for おとしとSentence search for 落し戸Kanji details for 落 and 戸Edit in JMdict Noun1. trapdoor; flap doorOther forms落し戸 【おとしと】Notes落し戸: Irregular okurigana usage. Discussions Log in to talk about this word.