concealeddoor

noun
UK /kənˈsiːld dɔː/
US /kənˈsiːld dɔːr/

A door that is made to look like part of the wall so people cannot easily see it.

The spy opened the concealed door behind the bookshelf and slipped into the secret room.


OTHER MEANINGS

2. A doorway built into furniture or a wall so it blends in with its surroundings.

The cabinet had a concealed door that led to a tiny staircase.

3. An emergency exit designed to be hard to notice from the outside.

Workers found a concealed door at the back of the old theater.

4. A magical or fictional entrance that only certain people can find.

In the story, the concealed door appeared only when the moon was full.