Source : Webster's Revised Unabridged Dictionary (1913)

Rouge \Rouge\, v. i. [imp. & p. p. {Rouged}; p. pr. & vb. n.
   {Rouging} .]
   To paint the face or cheeks with rouge.

Rouge \Rouge\, v. t.
   To tint with rouge; as, to rouge the face or the cheeks.

Rouge \Rouge\, a. [F., fr. L. rubeus red, akin to rubere to be
   red, ruber red. See {Red}.]
   red. [R.]

   {Rouge et noir}[F., red and black], a game at cards in which
      persons play against the owner of the bank; -- so called
      because the table around which the players sit has certain
      compartments colored red and black, upon which the stakes
      are deposited. --Hoyle.

Rouge \Rouge\, n. [F.]
   1. (Chem.) A red amorphous powder consisting of ferric oxide.
      It is used in polishing glass, metal, or gems, and as a
      cosmetic, etc. Called also {crocus}, {jeweler's rouge},
      etc.

   2. A cosmetic used for giving a red color to the cheeks or
      lips. The best is prepared from the dried flowers of the
      safflower, but it is often made from carmine. --Ure.

Source : WordNet®

rouge
     n : makeup consisting of a pink or red powder applied to the
         cheeks [syn: {paint}, {blusher}]

rouge
     v : redden by applying rouge to; "she rouged her cheeks"