cran ‧ ny /ˈkræni/ BrE AmE noun ( plural crannies ) [countable]
[ Date: 1400-1500 ; Language: Old French ; Origin: cren , cran 'mark cut in a surface' ]
a small narrow hole in a wall or rock:
The toad hid itself in a cranny in the wall.
⇨ nook and cranny at ↑ nook (3)