noun

• (geometry) A regular polyhedron having six identical square faces.
  "When the math teacher is teaching the class about cubes, he asks them to imagine a cardboard box whose width, length, and height are all the same."
• (mathematics) The third power of a number, value, term or expression.
  "The cube of 2 is 8."
• (computing) A data structure consisting of a three-dimensional array; a data cube.
• (informal, automotive) Clipping of cubic inch(es).
  "As if the 383 weren't already a roaring beast, in 1972 they bored it out some more, bringing it up to 400 cubes. This 400-cube monster could launch a land yacht like the Plymouth Fury from zero to sixty in under ten seconds."

verb

• (transitive, arithmetic) To raise to the third power; to determine the result of multiplying by itself twice.
  "Three cubed can be written as 3³, and equals twenty-seven."
• (transitive) To form into the shape of a cube.
• (transitive) To cut into cubes.
  "Cube the ham right after adding the curry to the rice."
• (intransitive) To use a Rubik's cube.
  "He likes to cube now and then."

adj

• (postpositive) Used in the names of units of area formed by multiplying a unit of length by itself twice.
  "Beautiful peepshows with hand-coloured engravings by Martin Englebrecht, 1684-1756, were produced in Augsburg about 1740. The box, about six inches cube, contained slots to take four cut-out scenes, the front of the box had another cut-out, and the back was painted with a landscape, making six 'curtains' in all."