A passage that leads into a cavity.
A body of water let into a coast, such as a bay, cove, fjord or estuary.
To let in; admit.
To carve the wooden stock of a firearm so as to position the metal components in it.
To insert; inlay.
Any of the small openings or pores in a sponge.
A small opening or orifice, as in a body organ or passage.
The mouth of a river.