The Collaborative International Dictionary of English v.0.48:

Pharaoh \Pha"raoh\, n. [Heb. par[=o]h; of Egyptian origin: cf.
   L. pharao, Gr. faraw`. Cf. Faro.]
   1. A title by which the sovereigns of ancient Egypt were
      designated.
      [1913 Webster]

   2. See Faro.
      [1913 Webster]

   Pharaoh's chicken (Zool.), the gier-eagle, or Egyptian
      vulture; -- so called because often sculpured on Egyptian
      monuments. It is nearly white in color.

   Pharaoh's rat (Zool.), the common ichneumon.
      [1913 Webster]

WordNet (r) 3.0 (2006):

Pharaoh
    n 1: the title of the ancient Egyptian kings [syn: Pharaoh,
         Pharaoh of Egypt]