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arch - definition and synonyms


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noun [countable] arch pronunciation in British English /ɑː(r)tʃ/
Word Forms
  1. 1
    a curved structure at the top of a door, window, or gate

    the arch above the front door

    1. a.
      a structure with a curved top and two straight sides that you can walk through

      a garden arch

    2. b.
      a curved structure, especially one that supports a building or a bridge

      Many people sheltered under the arches of the bridge.

  2. 2
    the curved part on the bottom of your foot

Open Dictionary


the practice of giving birth in the presence of several friends and relatives

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