Impression

n.
  1. The act of impressing, or the state of being impressed; the communication of a stamp, mold, style, or character, by external force or by influence.
  2. That which is impressed; stamp; mark; indentation; sensible result of an influence exerted from without.
  3. That which impresses, or exercises an effect, action, or agency; appearance; phenomenon.
  4. Influence or effect on the senses or the intellect hence, interest, concern.
  5. An indistinct notion, remembrance, or belief.
  6. Impressiveness; emphasis of delivery.
  7. (Print.) The pressure of the type on the paper, or the result of such pressure, as regards its appearance; as, a heavy impression; a clear, or a poor, impression; also, a single copy as the result of printing, or the whole edition printed at a given time; as, a copy from the fifth impression.
  8. In painting, the first coat of color, as the priming in house painting and the like.
  9. (Engraving) A print on paper from a wood block, metal plate, or the like.
  10. Proof impression ,
    one of the early impressions taken from an engraving, before the plate or block is worn.