What's the difference between cover and roof?

Cover


Definition:

  • (v. t.) To overspread the surface of (one thing) with another; as, to cover wood with paint or lacquer; to cover a table with a cloth.
  • (v. t.) To envelop; to clothe, as with a mantle or cloak.
  • (v. t.) To invest (one's self with something); to bring upon (one's self); as, he covered himself with glory.
  • (v. t.) To hide sight; to conceal; to cloak; as, the enemy were covered from our sight by the woods.
  • (v. t.) To brood or sit on; to incubate.
  • (v. t.) To shelter, as from evil or danger; to protect; to defend; as, the cavalry covered the retreat.
  • (v. t.) To remove from remembrance; to put away; to remit.
  • (v. t.) To extend over; to be sufficient for; to comprehend, include, or embrace; to account for or solve; to counterbalance; as, a mortgage which fully covers a sum loaned on it; a law which covers all possible cases of a crime; receipts than do not cover expenses.
  • (v. t.) To put the usual covering or headdress on.
  • (v. t.) To copulate with (a female); to serve; as, a horse covers a mare; -- said of the male.
  • (n.) Anything which is laid, set, or spread, upon, about, or over, another thing; an envelope; a lid; as, the cover of a book.
  • (n.) Anything which veils or conceals; a screen; disguise; a cloak.
  • (n.) Shelter; protection; as, the troops fought under cover of the batteries; the woods afforded a good cover.
  • (n.) The woods, underbrush, etc., which shelter and conceal game; covert; as, to beat a cover; to ride to cover.
  • (n.) The lap of a slide valve.
  • (n.) A tablecloth, and the other table furniture; esp., the table furniture for the use of one person at a meal; as, covers were laid for fifty guests.
  • (v. i.) To spread a table for a meal; to prepare a banquet.

Example Sentences:

  • (1) In a debate in the House of Commons, I will ask Britain, the US and other allies to convert generalised offers of help into more practical support with greater air cover, military surveillance and helicopter back-up, to hunt down the terrorists who abducted the girls.
  • (2) Photograph: Guardian The research also compiled data covered by a wider definition of tax haven, including onshore jurisdictions such as the US state of Delaware – accused by the Cayman islands of playing "faster and looser" even than offshore jurisdictions – and the Republic of Ireland, which has come under sustained pressure from other EU states to reform its own low-tax, light-tough, regulatory environment.
  • (3) The surface of all cells was covered by a fuzzy coat consisting of fine hairs or bristles.
  • (4) Five patients have been examined by defecography before and four after closure of a loop ileostomy performed to cover healing of the pouch and ileoanal anastomoses.
  • (5) A failure to reach a solution would potentially leave 200,000 homes without affordable cover, leaving owners unable to sell their properties and potentially exposing them to financial hardship.
  • (6) It was an artwork that fired the imaginations of 2 million visitors who played with, were provoked by and plunged themselves into the curious atmosphere of The Weather Project , with its swirling mist and gigantic mirrors that covered the hall's ceiling.
  • (7) But because current donor contributions are not sufficient to cover the thousands of schools in need of security, I will ask in the commons debate that the UK government allocates more.
  • (8) The degree of infection and incidence of different genera covering the same period were identical in both series.
  • (9) At first it looked as though the winger might have shown too much of the ball to the defence, yet he managed to gain a crucial last touch to nudge it past Phil Jones and into the path of Jerome, who slipped Chris Smalling’s attempt at a covering tackle and held off Michael Carrick’s challenge to place a shot past an exposed De Gea.
  • (10) The Sports Network broadcasts live NHL, Nascar, golf and horse racing – having also recently purchased the rights for Formula One – and will show 154 of the 196 games that NBC will cover.
  • (11) As to complications they recorded in one case mucosal bleeding after gastrofiberoptic polypectomy and in one case a covered perforation of the sigmoid at the site of colonoscopic polypectomy.
  • (12) The pressure is ramping up on Asda boss Andy Clarke, who next week will reveal the chain’s sales performance for the quarter covering Christmas.
  • (13) This week MediaGuardian 25, our survey of Britain's most important media companies, covering TV, radio, newspapers, magazines, music and digital, looks at BSkyB.
  • (14) When allegations of systemic doping and cover-ups first emerged in the runup to the 2013 Russian world athletics championships, an IOC spokesman insisted: “Anti-doping measures in Russia have improved significantly over the last five years with an effective, efficient and new laboratory and equipment in Moscow.” London Olympics were sabotaged by Russia’s doping, report says Read more We now know that the head of that lauded Moscow lab, Grigory Rodchenko, admitted to intentionally destroying 1,417 samples in December last year shortly before Wada officials visited.
  • (15) Chapman and the other "illegals" – sleeper agents without diplomatic cover – seem to have done little to harm American national security.
  • (16) This hydrostatic pressure may well be the driving force for creating channels for acid and pepsin to cross the mucus layer covering the mucosal surface.
  • (17) A retrospective study of autopsy-verified fatal pulmonary embolism at a department of infectious diseases was carried out, covering a four-year period (1980-83).
  • (18) Over the same period, breeding in drums dropped from 14%-25% to 4.7%, even though the drums were not treated or covered.
  • (19) The study covered 500 children from Warsaw's primary schools--250 children aged 6-8 years and 250 aged 13-15 years.
  • (20) The smaller interfaces cover about 700 A2 of the subunit surface.

Roof


Definition:

  • (n.) 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.
  • (n.) 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.
  • (n.) The surface or bed of rock immediately overlying a bed of coal or a flat vein.
  • (v. t.) To cover with a roof.
  • (v. t.) To inclose in a house; figuratively, to shelter.

Example Sentences:

  • (1) The M&S Current Account, which has no monthly fee, is available from 15 May and is offering people the chance to bank and shop under one roof.
  • (2) The horizontal portion of the intracavernous ICA as well as the whole aspect of the aneurysm could be exposed as a result of the extended opening of the cavernous roof anterior to the posterior clinoid process.
  • (3) In 1986, Bill Heine erected a 25ft sculpture of a shark falling through the roof of his terraced house in Oxford .
  • (4) Nango's dwellings are built on skis so can be pulled around the beach, and have a glass roof to view the northern lights.
  • (5) A grassed roof, solar panels to provide hot water, a small lake to catch rainwater which is then recycled, timber cladding for insulation ... even the pitch and floodlights are "deliberately positioned below the level of the surrounding terrain in order to reduce noise and light pollution for the neighbouring population".
  • (6) For the roof, different odorants produced different activity patterns, which had profiles not simply described as regions of maximal and minimal responsiveness.
  • (7) The scheme is available to those who have one or more of the following technologies: solar PV panels (roof-mounted or stand alone), wind turbines (building mounted or free standing), hydroelectricity, anaerobic digestion (generating electricity from food waste), and micro combined heat and power (through the use of new types of boilers , for example).
  • (8) They were about to put the roof on it,” Hickman said.
  • (9) Just one problem (apart from the old roof falling off): it's 60 miles from my desk.
  • (10) On it rests the small village of Dholera – a cluster of houses with thatched roofs, muddy roads, and acres of flat, fertile land surrounding them.
  • (11) I have to put a roof over my son’s head.” Junior doctors will be balloted to decide whether to strike over a radical new contract imposed on them by the Department of Health, which redefines their normal working week to include Saturday and removes overtime rates for work between 7pm and 10pm every day except Sunday.
  • (12) Hydrogen sulfide poisoning from inhalation of roofing asphalt fumes is a rare but devastating injury.
  • (13) The keratinocytes of the blister roof showed aggregation of the tonofibrils at the periphery, and vacuolization of mitochondria and endoplasmic reticulum.
  • (14) The commemoration began when the clock on the neo-gothic Town Hall struck 12, and a maroon was fired from the roof.
  • (15) Glasgow Central station was also closed to the public after flying debris shattered part of the building's glass roof.
  • (16) Berkeley has launched a new design called the Urban House, a three-storey house with a private roof garden instead of a back garden.
  • (17) Now the fabric of the school is visibly crumbling: roofs leak and skylights are broken; the estimated cost of repairs is £1m.
  • (18) I went inside, and the sound of the rain on the roof and the darkness inside made me very afraid.
  • (19) The risk of getting malaria was greater for inhabitants of the poorest type of house construction (incomplete, mud, or cadjan (palm) walls, and cadjan thatched roofs) compared to houses with complete brick and plaster walls and tiled roofs.
  • (20) The operative method involves removal of portions of the orbital rim, orbital roof, and sphenoid bone.