ridge

(noun) a long narrow natural elevation or striation.

(noun) any long raised strip.

(noun) a long narrow natural elevation on the floor of the ocean.

(noun) a long narrow range of hills. Synonyms: ridgeline.

(noun) any long raised border or margin of a bone or tooth or membrane.

(noun) a beam laid along the edge where two sloping sides of a roof meet at the top; provides an attachment for the upper ends of rafters. Synonyms: ridgepole, rooftree.

(verb) extend in ridges. Example: "The land ridges towards the south."

(verb) plough alternate strips by throwing the furrow onto an unploughed strip.

(verb) throw soil toward (a crop row) from both sides. Example: "He ridged his corn."

(verb) spade into alternate ridges and troughs. Example: "Ridge the soil."

(verb) form into a ridge.