Ledge

A shelf on which articles may be laid; also, that which resembles such a shelf in form or use, as a projecting ridge or part, or a molding or edge in joinery.

A shelf, ridge, or reef, of rocks.

A layer or stratum.

A lode; a limited mass of rock bearing valuable mineral.

A piece of timber to support the deck, placed athwartship between beams.

a projecting ridge on a mountain or submerged under water