perpendicular

  • (noun): A line or plane that is perpendicular to another.
  • (noun): A device such as a plumb line that is used in making or marking a perpendicular line.
  • (noun): A meal eaten at a tavern bar while standing up.
  • (adjective): At or forming a right angle (to something).
  • (adjective): Exactly upright; extending in a straight line toward the centre of the earth, etc.
  • (adjective): Independent of or irrelevant to each other; orthogonal.
  • In most houses, the walls are perpendicular to the floor.