(1):
(n.) A piece of timber to support the deck, placed athwartship between beams.
(2):
(n.) A lode; a limited mass of rock bearing valuable mineral.
(3):
(n.) A layer or stratum.
(4):
(n.) 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.
(5):
(n.) A shelf, ridge, or reef, of rocks.