1. Having four equal sides, the opposite sides parallel, and four right angles; square.
  2. Produced by multiplying a number by itself; square.
  3. Square; even; balanced; equal; exact.
  4. Squared; suited; correspondent.
  5. A plane surface with four equal sides and four right angles; a square; hence, figuratively, anything having the outline of a square.
  6. An aspect of the heavenly bodies in which they are distant from each other 90ยก, or the quarter of a circle; quartile. See the Note under Aspect, 6.
  7. The quadrate bone.
  8. To square; to agree; to suit; to correspond; -- followed by with.

v. t.

  1. To adjust (a gun) on its carriage; also, to train (a gun) for horizontal firing.