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Roof vs Arch - What's the difference?

roof | arch |

As a proper noun roof

is (astronomy) a chinese constellation located near aquarius and pegasus, one of the 28 lunar mansions and part of the larger black turtle.

As a noun arch is

(senseid)an inverted u shape or arch can be (obsolete) a chief.

As a verb arch is

to form into an arch shape.

As an adjective arch is

(senseid) knowing, clever, mischievous.

roof

English

(wikipedia roof)

Noun

(en-noun)
  • The cover at the top of a building.
  • * , chapter=1
    • , title= Mr. Pratt's Patients, chapter=1 , passage=Pretty soon I struck into a sort of path […]. It twisted and turned,
  • * 1931 , Robert L. May, Rudolph'', ''The Red-Nosed Reindeer , Montgomery Ward (publisher), draft:
    • The very first sound that you’ll hear on the roof / (Provided there’s fog) will be Rudolph’s small hoof.
  • The upper part of a cavity.
  • * {{quote-news, year=2011, date=October 1, author=John Sinnott, work=BBC Sport
    • , title= Aston Villa 2-0 Wigan , passage=As Bent pulled away to the far post, Agbonlahor opted to go it alone, motoring past Gary Caldwell before unleashing a shot into the roof of the net.}}
  • (mining) The surface or bed of rock immediately overlying a bed of coal or a flat vein.

    • Usage notes

    * The plural rooves'' is uncommon and is considered by some to be incorrect, though it is parallel to more common plurals like ''hooves'' and ''staves. * In referring to the top of a building, refers both to the object itself (“the roof was blown off in the tornado”) and to the location of being on the roof (“it can be dangerous to go on the roof to fix the antenna”). In the later sense (of “location”) it is often used attributively, largely interchangeably with rooftop.

    Synonyms

    * (cover at top of building) , thatch * (in a cavity)

    Derived terms

    * barrel roof * built-up roof * burn the roof * coach roof * hip roof * hit the roof * mansard roof * raise the roof * rooftop * rooftree * shed roof * single-ply roof * steep-slope roof * sunroof * through the roof

    Verb

    (en verb)
  • To cover or furnish with a roof.

    • Derived terms

    * roofer * unroof

    arch

    English

    (wikipedia arch) (commons)

    Etymology 1

    From (etyl), from (etyl) .

    Noun

    (es)
  • (senseid)An inverted U shape.
  • An arch-shaped arrangement of trapezoidal stones, designed to redistribute downward force outward.
  • (senseid)(architecture) An architectural element having the shape of an arch
  • Any place covered by an arch; an archway.
    • to pass into the arch of a bridge
  • (archaic, geometry) An arc; a part of a curve.
    • References
    *

    Verb

  • To form into an arch shape
    • The cat arched its back
  • To cover with an arch or arches.

    • Related terms

    * arc

    Etymology 2

    From the prefix . "Principal" is the original sense; "mischievous" is via onetime frequent collocation with rogue, knave, etc.

    Adjective

    (er)
  • (senseid) Knowing, clever, mischievous.
    • I attempted to hide my emotions, but an arch remark escaped my lips.
  • * Tatler
    • [He] spoke his request with so arch a leer.
  • * 1906 , O. Henry,
    • A certain melancholy that touched her countenance must have been of recent birth, for it had not yet altered the fine and youthful contours of her cheek, nor subdued the arch though resolute curve of her lips.
  • *
    • Lassiter ended there with dry humor, yet behind that was meaning. Jane blushed and made arch eyes at him.
  • Principal; primary.
  • * Shakespeare
    • the most arch act of piteous massacre
    Derived terms
    * (l)

    Noun

    (es)
  • (obsolete) A chief.
  • * Shakespeare
    • My worthy arch and patron comes to-night.

    External links

    * * *

    Anagrams

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