1.  roof(n = noun.artifact) - a protective covering that covers or forms the top of a building;
is a kind of protection, protective cover, protective covering
is a part of building, edifice
has parts: eaves, roof peak
has particulars: curb roof, dome, gable roof, saddle roof, saddleback, saddleback roof, hip roof, hipped roof, housetop, slate roof, sunroof, sunshine-roof, thatch, thatched roof, tile roof, vault
Derived form verb roof₁

2.  roof(n = noun.artifact) - protective covering on top of a motor vehicle;
is a kind of protection, protective cover, protective covering
is a part of autobus, bus, charabanc, coach, double-decker, jitney, motorbus, motorcoach, omnibus, passenger vehicle, auto, automobile, car, machine, motorcar, motortruck, truck
has particulars: hood

3.  roof(n = noun.object) - the inner top surface of a covered area or hollow space; "the roof of the cave was very high"; "I could see the roof of the bear's mouth"
is a kind of cover, covering, natural covering
is a part of cave

4.  roof(n = noun.communication) cap, ceiling - an upper limit on what is allowed; "he put a ceiling on the number of women who worked for him"; "there was a roof on salaries"; "they established a cap for prices"
is a kind of control
has particulars: glass ceiling

   roof(v = verb.contact) - provide a building with a roof; cover a building with a roof;
is one way to cover
Derived forms noun roof₁, noun roofer₁, noun roofing₂
Sample sentences: Somebody ----s something

1.  The cover of any building, including the roofing (see Roofing) and all the materials and construction necessary to carry and maintain the same upon the walls or other uprights. In the case of a building with vaulted ceilings protected by an outer roof, some writers call the vault the roof, and the outer protection the roof mask. It is better, however, to consider the vault as the ceiling only, in cases where it has farther covering. [1913 Webster]

2.  That which resembles, or corresponds to, the covering or the ceiling of a house; as, the roof of a cavern; the roof of the mouth. [1913 Webster]
"The flowery roof
Showered roses, which the morn repaired." [1913 Webster]

3.  The surface or bed of rock immediately overlying a bed of coal or a flat vein. [1913 Webster]

1.  To cover with a roof. [1913 Webster]
"I have not seen the remains of any Roman buildings that have not been roofed with vaults or arches." [1913 Webster]

2.  To inclose in a house; figuratively, to shelter. [1913 Webster]
"Here had we now our country's honor roofed." [1913 Webster]

roof, n. & v.
--n. (pl. roofs or disp. rooves)
1 a the upper covering of a building, usu. supported by its walls. b the top of a covered vehicle. c the top inner surface of an oven, refrigerator, etc.
2 the overhead rock in a cave or mine etc.
3 the branches or the sky etc. overhead.
4 (of prices etc.) the upper limit or ceiling.
--v.tr.
1 (often foll. by in, over) cover with or as with a roof.
2 be the roof of.

Idiom:
go through the roof colloq. (of prices etc.) reach extreme or unexpected heights. hit (or go through or raise) the roof colloq. become very angry. roof-garden a garden on the flat roof of a building. roof of the mouth the palate. a roof over one's head somewhere to live. roof-rack a framework for carrying luggage etc. on the roof of a vehicle. roof-tree the ridge-piece of a roof. under one roof in the same building. under a person's roof in a person's house (esp. with ref. to hospitality).

Derivative:
roofed adj. (also in comb.). roofless adj.

Etymology:
OE hrof

N  abode, dwelling, lodging, domicile, residence, apartment, place, digs, pad, address, habitation, where one's lot is cast, local habitation, berth, diggings, seat, lap, sojourn, housing, quarters, headquarters, resiance, tabernacle, throne, ark, home, fatherland, country, homestead, homestall, fireside, hearth, hearth stone, chimney corner, inglenook, ingle side, harem, seraglio, zenana, household gods, lares et penates, roof, household, housing, dulce domum, paternal domicile, native soil, native land, habitat, range, stamping ground, haunt, hangout, biosphere, environment, ecological niche, nest, nidus, snuggery, arbor, bower, lair, den, cave, hole, hiding place, cell, sanctum sanctorum, aerie, eyrie, eyry, rookery, hive, covert, resort, retreat, perch, roost, nidification, kala jagah, bivouac, camp, encampment, cantonment, castrametation, barrack, casemate, casern, tent, building, chamber, xenodochium, tenement, messuage, farm, farmhouse, grange, hacienda, toft, cot, cabin, hut, chalet, croft, shed, booth, stall, hovel, bothy, shanty, dugout, wigwam, pen, barn, bawn, kennel, sty, doghold, cote, coop, hutch, byre, cow house, cow shed, stable, dovecote, columbary, columbarium, shippen, igloo, iglu, jacal, lacustrine dwelling, lacuslake dwelling, lacuspile dwelling, log cabin, log house, shack, shebang, tepee, topek, house, mansion, place, villa, cottage, box, lodge, hermitage, rus in urbe, folly, rotunda, tower, chateau, castle, pavilion, hotel, court, manor-house, capital messuage, hall, palace, kiosk, bungalow, casa, country seat, apartment house, flat house, frame house, shingle house, tenement house, temple, hamlet, village, thorp, dorp, ham, kraal, borough, burgh, town, city, capital, metropolis, suburb, province, country, county town, county seat, courthouse, ghetto, street, place, terrace, parade, esplanade, alameda, board walk, embankment, road, row, lane, alley, court, quadrangle, quad, wynd, close, yard, passage, rents, buildings, mews, square, polygon, circus, crescent, mall, piazza, arcade, colonnade, peristyle, cloister, gardens, grove, residences, block of buildings, market place, place, plaza, anchorage, roadstead, roads, dock, basin, wharf, quay, port, harbor, quarter, parish, assembly room, meetinghouse, pump room, spa, watering place, inn, hostel, hostelry, hotel, tavern, caravansary, dak bungalow, khan, hospice, public house, pub, pot house, mug house, gin mill, gin palace, bar, bar room, barrel house, cabaret, chophouse, club, clubhouse, cookshop, dive, exchange, grill room, saloon, shebeen, coffee house, eating house, canteen, restaurant, buffet, cafe, estaminet, posada, almshouse, poorhouse, townhouse, garden, park, pleasure ground, plaisance, demesne, cage, terrarium, doghouse, pen, aviary, barn, stall, zoo, urban, metropolitan, suburban, provincial, rural, rustic, domestic, cosmopolitan, palatial, eigner Hert ist goldes Werth, even cities have their graves, ubi libertas ibi patria, home sweet home.

N  covering, cover, baldachin, baldachino, baldaquin, canopy, tilt, awning, tent, marquee, tente d'abri, umbrella, parasol, sunshade, veil (shade), shield, roof, ceiling, thatch, tile, pantile, pentile, tiling, slates, slating, leads, barrack, plafond, planchment, tiling, shed, top, lid, covercle, door, operculum, bulkhead, bandage, plaster, lint, wrapping, dossil, finger stall, coverlet, counterpane, sheet, quilt, tarpaulin, blanket, rug, drugget, housing, antimacassar, eiderdown, numdah, pillowcase, pillowslip, linoleum, saddle cloth, blanket cloth, tidy, tilpah, apishamore, integument, tegument, skin, pellicle, fleece, fell, fur, leather, shagreen, hide, pelt, peltry, cordwain, derm, robe, buffalo robe, cuticle, scarfskin, epidermis, clothing, mask, peel, crust, bark, rind, cortex, husk, shell, coat, eggshell, glume, capsule, sheath, sheathing, pod, cod, casing, case, theca, elytron, elytrum, involucrum, wrapping, wrapper, envelope, vesicle, corn husk, corn shuck, dermatology, conchology, testaceology, inunction, incrustation, superimposition, superposition, obduction, scale, veneer, facing, overlay, plate, silver plate, gold plate, copper plate, engobe, ormolu, Sheffield plate, pavement, coating, paint, varnish, plating, barrel plating, anointing, enamel, epitaxial deposition, vapor deposition, ground, whitewash, plaster, spackel, stucco, compo, cerement, ointment, covering, superimposed, overlaid, plated, cutaneous, dermal, cortical, cuticular, tegumentary, skinny, scaly, squamous, covered, imbricated, loricated, armor plated, ironclad, under cover, cowled, cucullate, dermatoid, encuirassed, hooded, squamiferous, tectiform, vaginate.

curb roof, french roof, gable roof, gambrel roof, hip roof, hit the roof, hurricane roof, mansard roof, raise the roof, roof garden, roof mushroom, roof of the mouth, roof peak, roof rack, roof rat, saddle roof, saddleback roof, slate roof, thatched roof, tile roof