(v): put a coat on; cover the surface of; furnish with a surface
(v): search (as the bottom of a body of water) for something valuable or lost
(v): try to locate or discover, or try to establish the existence of
(v): remove with a power shovel, usually from a bottom of a body of water
(v): remove something concrete, as by lifting, pushing, or taking off, or remove something abstract
(n): a power shovel to remove material from a channel or riverbed
(n): a machine for excavating