a relatively narrow, projecting part, as a horizontal, shelflike projection on a wall or a raised edge on a tray.

a more or less flat shelf of rock protruding from a cliff or slope.

a reef, ridge, or line of rocks in the sea or other body of water.

Mining .

a layer or mass of rock underground.

a lode or vein.

Carpentry . a member similar to but larger than a cleat.

Shipbuilding . a minor transverse deck beam running between regular deck beams to form part of a coaming.

to assemble (a door or the like) with ledges.

noun

bar , bench , berm , bracket , console , edge , jut , mantle , offset , path , projection , reef , ridge , rim , route , sill , step , strip , tier , track , trail , walk , way , layer , lode , platform , ridge (of rocks) , shelf , stratum , vein