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flat

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noun flat pronunciation in British English /flæt/ 
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singularflat
pluralflats
  1. 1
    [countable] British a set of rooms for living in, usually on one floor of a large building. The usual American word is apartment

    They bought a flat in Chelsea.

    The family live in a fourth-floor flat.

    Let's meet at my flat.

    a block of flats (=a building with a lot of flats in it)

  2. 2
    [countable] music a musical note that is one semitone lower than a particular note
    Synonyms and related words for this sense of flat
  3. 3

    flats

    [plural] a low flat area of land, usually wet land near a large area of water
    Synonyms and related words for this sense of flat
    Synonyms and related words for this sense of flat
  4. 4
    [countable] mainly American informal a puncture1 (sense 1)
  5. 5

    flats

    [plural] mainly American shoes without heels or with very low heels

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