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solid [ˈsɑːləd]

1 solid adjective
  • firm or hard : not having the form of a gas or liquid
  • having no space inside : not hollow
  • made entirely from the specified material

2 solid noun
  • a solid substance : a substance that is not a gas or a liquid
  • an object that has length, width, and height : a three-dimensional object
  • foods that are not liquid