Word

観音扉

かんのんとびら
double doors opening from the centre
Word

仕掛け扉

しかけとびら
trapdoor; trap door
Word

小開扉

小開ひ
しょうかいひ
opening a door for a moment (esp. on the train, when someone's foot is stuck, etc.)
Word

二十の扉

にじゅうのとびら
twenty questions (game)
Word

扉口

とびらぐち
doorway; door; hatch