maskedopening

noun
UK /mɑːsktˈəʊpənɪŋ/
US /mæsktˈoʊpənɪŋ/

A masked opening is a hole or gap that is covered up so you cannot see it.

The mouse found a masked opening behind the box and slipped through.


OTHER MEANINGS

2. An opening in a mask that lets the wearer see or breathe.

The mask's masked opening let air in while keeping dust out.

3. A doorway or entrance that is hidden by decoration or camouflage.

The castle had a masked opening in the wall that looked like plain stone.

4. In theater, a gap in a stage mask that lets actors peek at the audience.

The actor used the masked opening to check if the audience was seated.