1.  ridge(n = noun.object) - a long narrow natural elevation or striation;
Derived form verb ridge₁

2.  ridge(n = noun.shape) - any long raised strip;
Derived form verb ridge₂, verb ridge₃, verb ridge₄, verb ridge₅

3.  ridge(n = noun.object) - a long narrow natural elevation on the floor of the ocean;

4.  ridge(n = noun.object) ridgeline - a long narrow range of hills;
Derived form verb ridge₁

5.  ridge(n = noun.body) - any long raised border or margin of a bone or tooth or membrane;

6.  ridge(n = noun.artifact) ridgepole, rooftree - 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;

1.  ridge(v = verb.stative) - extend in ridges; "The land ridges towards the South"
Derived form noun ridge₁, noun ridge₄
Sample sentences: Something ----s

2.  ridge(v = verb.creation) - plough alternate strips by throwing the furrow onto an unploughed strip;
Derived form noun ridge₂
Sample sentences: Somebody ----s something

3.  ridge(v = verb.contact) - throw soil toward (a crop row) from both sides; "He ridged his corn"
Derived form noun ridge₂
Sample sentences: Somebody ----s something

4.  ridge(v = verb.contact) - spade into alternate ridges and troughs; "ridge the soil"
Derived form noun ridge₂
Sample sentences: Somebody ----s something

5.  ridge(v = verb.change) - form into a ridge;
Derived form noun ridge₂
Sample sentences: Somebody ----s something

1.  The back, or top of the back; a crest. Hudibras. [1913 Webster]

2.  A range of hills or mountains, or the upper part of such a range; any extended elevation between valleys. Shak. [1913 Webster]

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. [1913 Webster]

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. [1913 Webster]

5.  The highest portion of the glacis proceeding from the salient angle of the covered way. Stocqueler. [1913 Webster]

1.  To form a ridge of; to furnish with a ridge or ridges; to make into a ridge or ridges. [1913 Webster]

2.  To form into ridges with the plow, as land. [1913 Webster]

3.  To wrinkle. Cowper. [1913 Webster]

ridge, n. & v.
--n.
1 the line of the junction of two surfaces sloping upwards towards each other (the ridge of a roof).
2 a long narrow hilltop, mountain range, or watershed.
3 any narrow elevation across a surface.
4 Meteorol. an elongated region of high barometric pressure.
5 Agriculture a raised strip of arable land, usu. one of a set separated by furrows.
6 Hort. a raised hotbed for melons etc.
--v.
1 tr. mark with ridges.
2 tr. Agriculture break up (land) into ridges.
3 tr. Hort. plant (cucumbers etc.) in ridges.
4 tr. & intr. gather into ridges.

Idiom:
ridge-piece (or -tree) a beam along the ridge of a roof. ridge-pole
1 the horizontal pole of a long tent.
2 = ridge-piece. ridge-tile a tile used in making a roof-ridge.

Derivative:
ridgy adj.

Etymology:
OE hrycg f. Gmc

N  narrowness, thinness, narrowness, closeness, exility, exiguity, line, hair's breadth, finger's breadth, strip, streak, vein, monolayer, epitaxial deposition, thinness, tenuity, emaciation, macilency, marcor, shaving, slip, thread paper, skeleton, shadow, anatomy, spindleshanks, lantern jaws, mere skin and bone, middle constriction, stricture, neck, waist, isthmus, wasp, hourglass, ridge, ghaut, ghat, pass, ravine, narrowing, coarctation, angustation, tapering, contraction, narrow, close, slender, thin, fine, thread-like, finespun, gossamer, paper-thin, taper, slim, slight-made, scant, scanty, spare, delicate, incapacious, contracted, unexpanded &c (expand), slender as a thread, emaciated, lean, meager, gaunt, macilent, lank, lanky, weedy, skinny, scrawny slinky, starved, starveling, herring gutted, worn to a shadow, lean as a rake, thin as a lath, thin as a whipping post, thin as a wafer, hatchet-faced, lantern-jawed, attenuated, shriveled, extenuated, tabid, marcid, barebone, rawboned, monomolecular.

N  height, altitude, elevation, eminence, pitch, loftiness, sublimity, tallness, stature, procerity, prominence, colossus, giant, grenadier, giraffe, camelopard, mount, mountain, hill alto, butte, monticle, fell, knap, cape, headland, foreland, promontory, ridge, hog's back, dune, rising ground, vantage ground, down, moor, moorland, Alp, uplands, highlands, heights, knob, loma, pena, picacho, tump, knoll, hummock, hillock, barrow, mound, mole, steeps, bluff, cliff, craig, tor, peak, pike, clough, escarpment, edge, ledge, brae, dizzy height, tower, pillar, column, obelisk, monument, steeple, spire, minaret, campanile, turret, dome, cupola, skyscraper, pole, pikestaff, maypole, flagstaff, top mast, topgallant mast, ceiling, high water, high tide, flood tide, spring tide, altimetry, batophobia, satellite, spy-in-the-sky, high, elevated, eminent, exalted, lofty, tall, gigantic, Patagonian, towering, beetling, soaring, hanging (gardens), elevated, upper, highest, high reaching, insessorial, perching, upland, moorland, hilly, knobby, mountainous, alpine, subalpine, heaven kissing, cloudtopt, cloudcapt, cloudtouching, aerial, overhanging, incumbent, overlying, superincumbent, supernatant, superimposed, prominent, tall as a maypole, tall as a poplar, tall as a steeple, lanky, on high, high up, aloft, up, above, aloof, overhead, airwind, upstairs, abovestairs, in the clouds, on tiptoe, on stilts, on the shoulders of, over head and ears, breast high, over, upwards, from top to bottom, e meglio cader dalle finistre che dal tetto.

N  convexity, prominence, projection, swelling, gibbosity, bilge, bulge, protuberance, protrusion, camber, cahot, thank-ye-ma'am, swell, intumescence, tumour, tumor, tubercle, tuberosity, excrescence, hump, hunch, bunch, boss, embossment, hub, hubble, tooth, knob, elbow, process, apophysis, condyle, bulb, node, nodule, nodosity, tongue, dorsum, bump, clump, sugar loaf, bow, mamelon, molar, belly, corporation, pot belly, gut, withers, back, shoulder, lip, flange, pimple, zit, wen, wheel, papula, pustule, pock, proud flesh, growth, sarcoma, caruncle, corn, wart, pappiloma, furuncle, polypus, fungus, fungosity, exostosis, bleb, blister, blain, boil, airbubble, blob, papule, verruca, papilla, nipple, teat, tit, titty, boob, knocker, pap, breast, dug, mammilla, proboscis, nose, neb, beak, snout, nozzle, schnoz, peg, button, stud, ridge, rib, jutty, trunnion, snag, cupola, dome, arch, balcony, eaves, pilaster, relief, relievo, cameo, bassorilievo, mezzorilevo, altorivievo, low relief, bas relief, high relief, hill, cape, promontory, mull, forehead, foreland, point of land, mole, jetty, hummock, ledge, spur, naze, ness, convex, prominent, protuberant, projecting, bossed, embossed, bossy, nodular, bunchy, clavate, clavated, claviform, hummocky, moutonne, mammiliform, papulous, papilose, hemispheric, bulbous, bowed, arched, bold, bellied, tuberous, tuberculous, tumous, cornute, odontoid, lentiform, lenticular, gibbous, club shaped, hubby, hubbly, knobby, papillose, saddle-shaped, selliform, subclavate, torose, ventricose, verrucose, salient, in relief, raised, repousse, bloated, (expanded).