Invention

n.
  1. The act of finding out or inventing; contrivance or construction of that which has not before existed; as, the invention of logarithms; the invention of the art of printing.
  2. That which is invented; an original contrivance or construction; a device; as, this fable was the invention of Esop; that falsehood was her own invention; she patented five inventions.
  3. Thought; idea.
  4. A fabrication to deceive; a fiction; a forgery; a falsehood.
  5. The faculty of inventing; imaginative faculty; skill or ingenuity in contriving anything new; as, a man of invention.
  6. (Fine Arts, Rhet., etc.) The exercise of the imagination in selecting and treating a theme, or more commonly in contriving the arrangement of a piece, or the method of presenting its parts.
    7. Invention of the cross (Eccl.),
    a festival celebrated May 3d, in honor of the finding of our Savior's cross by St. Helena.