A hole through which a mouse enters a room.
The storage area on a drilling rig where the next joint of drilling pipe is held until needed.
Any small hole or opening.
A hole burrowed by a worm.
A location in a monitor program containing the address of a routine, allowing the user to substitute different functionality.
A hypothetical shortcut between two points in spacetime, permitting faster-than-light travel and sometimes time travel.
To make porous or permeable through the formation of small holes or tunnels.