Ridge

Part of speech: noun (n.)

1. The back, or top of the back; a crest. Hudibras.

2. A range of hills or mountains, or the upper part of such a range; any extended elevation between valleys. "The frozen ridges of the Alps." Shak. Part rise crystal wall, or ridge direct. Milton.

3. A raised line or strip, as of ground thrown up by a plow or left between furrows or ditches, or as on the surface of metal, cloth, or bone, etc.

4. The intersection of two surface forming a salient angle, especially the angle at the top between the opposite slopes or sides of a roof or a vault.

5. The highest portion of the glacis proceeding from the salient angle of the covered way. Stocqueler.

Part of speech: verb (v.)

1. To form a ridge of; to furnish with a ridge or ridges; to make into a ridge or ridges. Bristles ranged like those that ridge the back Of chafed wild boars. Milton.

2. To form into ridges with the plow, as land.

3. To wrinkle. "With a forehead ridged." Cowper.