Rectangular and Area

adjective

• Having four right angles.
  • usage: "a rectangular figure twice as long as it is wide"
• Having a set of mutually perpendicular axes; meeting at right angles.
  • usage: "wind and sea may displace the ship's center of gravity along three orthogonal axes"; "a rectangular Cartesian coordinate system"
  • synonyms: orthogonal

(a.) Right-angled; having one or more angles of ninety degrees.

noun

• A particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography. )
  • usage: "it was a mountainous area"; "Bible country"
  • synonyms: country
• A subject of study.
  • usage: "it was his area of specialization"; "areas of interest include..."
• A part of an animal that has a special function or is supplied by a given artery or nerve.
  • usage: "in the abdominal region"
  • synonyms: region
• A particular environment or walk of life.
  • usage: "his social sphere is limited"; "it was a closed area of employment"; "he's out of my orbit"
  • synonyms: sphere, domain, orbit, field, arena
• A part of a structure having some specific characteristic or function.
  • usage: "the spacious cooking area provided plenty of room for servants"
• The extent of a 2-dimensional surface enclosed within a boundary.
  • usage: "the area of a rectangle"; "it was about 500 square feet in area"
  • synonyms: expanse, surface area

• (n.) The inclosed space on which a building stands.
• (n.) The superficial contents of any figure; the surface included within any given lines; superficial extent; as, the area of a square or a triangle.
• (n.) The sunken space or court, giving ingress and affording light to the basement of a building.
• (n.) An extent of surface; a tract of the earth's surface; a region; as, vast uncultivated areas.
• (n.) A spot or small marked space; as, the germinative area.
• (n.) Any plane surface, as of the floor of a room or church or of the ground within an inclosure; an open space in a building.
• (n.) Extent; scope; range; as, a wide area of thought.