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Definition of "arch" []

  • A structure, especially one of masonry, forming the curved, pointed, or flat upper edge of an open space and supporting the weight above it, as in a bridge or doorway. (noun)
  • A structure, such as a freestanding monument, shaped like an inverted U. (noun)
  • A curve with the ends down and the middle up: the arch of a raised eyebrow. (noun)
  • Anatomy An organ or structure having a curved or bowlike appearance, especially either of two arched sections of the bony structure of the foot. (noun)
  • To provide with an arch: arch a passageway. (verb-transitive)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "arch" in a sentence
  • "MISCELLANEOUS WORDS. adobe _ado'ba_ algebra not _bra_ alien _alyen_, not _alien_ ameliorate _amelyorate_ antarctic _antarktik_ anti not _anti_ archangel _arkangel_ archbishop _arch_, not _ark_ arch fiend _arch_, not _ark_ architect _arkitect_ awkward _awkward_, not _ard_"
  • "Especially rich were the half-dome of the apse and the wall-space surrounding its arch and called the _triumphal arch_; next in decorative importance came the broad band of wall beneath the clearstory windows."
  • "The development of fan-vaulting had led to the adoption of a new form of arch, the four-centred or _Tudor arch_ (Fig. 133), to fit under the depressed apex of the vault."