Translation guide
A door in a floor, ceiling, or roof, often hidden or used for access. In Japanese, the term depends on the location and function.
A door set into a floor, often leading to a cellar, basement, or hidden space.
Common term for a floor storage compartment with a trap door, often found in Japanese homes.
床下収納庫の蓋を開ける。
Open the trap door to the underfloor storage.
An access panel or trap door in the floor for inspection, often in utility spaces.
床下点検口から配管を確認する。
Check the pipes through the floor trap door.
Literally 'drop door', a trap door that opens downward, often in traditional architecture or stage settings.
舞台の落とし戸から役者が登場する。
The actor appears from a trap door in the stage.
A door in a ceiling or roof for access to an attic, roof space, or maintenance area.
Standard term for a ceiling access hatch or trap door, used in homes and buildings.
天井点検口から屋根裏に入る。
Enter the attic through the ceiling trap door.
Specifically an access hatch to the space above the ceiling.
天井裏点検口を開けて断熱材を確認する。
Open the ceiling trap door to check the insulation.
A roof access hatch, typically for maintenance on flat roofs.
屋根点検口から屋上に出る。
Go out onto the roof through the roof trap door.
A concealed door in a floor or wall, often for dramatic entrances, escapes, or secret passages.
A hidden door, often used for secret rooms or passages; can refer to a trap door if in the floor.
書斎の隠し扉から地下室に降りる。
Go down to the basement through a hidden trap door in the study.
A secret door, more generic; can be used for trap doors in fiction or games.
秘密の扉が床に隠されている。
A secret trap door is hidden in the floor.
Loanword from English, used in gaming, theater, or technical contexts.
ゲームでトラップドアを見つける。
Find a trap door in the game.
Simply saying 'トラップドア' may not be understood in everyday conversation. Use context-specific terms like 床下収納庫 or 天井点検口 for common situations.
床下収納庫の蓋を開けて。
Open the trap door to the underfloor storage.
Japanese distinguishes clearly between floor access (床下) and ceiling access (天井). Use the appropriate compound word to avoid confusion.
ceiling trap door (inspection hatch)