- a long, narrow elevation of land; a chain of hills or mountains.
- the long and narrow upper edge, angle, or crest of something, as a hill, wave, or vault.
- the back of an animal.
- any raised, narrow strip, as on cloth.
- the horizontal line in which the tops of the rafters of a roof meet.
- (on a weather chart) a narrow, elongated area of high pressure.
- to provide with or form into a ridge or ridges.
- to mark with or as if with ridges.
- to form ridges.
- a long narrow raised land formation with sloping sides esp one formed by the meeting of two faces of a mountain or of a mountain buttress or spur
- any long narrow raised strip or elevation, as on a fabric or in ploughed land
- any elongated raised margin or border on a bone, tooth, tissue membrane, etc
- the top of a roof at the junction of two sloping sides
- (as modifier)
- the back or backbone of an animal, esp a whale
- an elongated area of high pressure, esp an extension of an anticyclone
- to form into a ridge or ridges
