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Definitions of concrete
  1. noun
    a strong hard building material composed of sand and gravel and cement and water
  2. adjective
    capable of being perceived by the senses; not abstract or imaginary
    "concrete objects such as trees"

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    Opposite:
  3. verb
    cover with cement
    "concrete the walls"
    type of:
  4. adjective
    formed by the coalescence of particles

    Similar: 

  5. verb
    form into a solid mass; coalesce
    type of:
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