Source : Webster's Revised Unabridged Dictionary (1913)

Hint \Hint\, v. i.
   To make an indirect reference, suggestion, or allusion; to
   allude vaguely to something.

         We whisper, and hint, and chuckle.       --Tennyson.

   {To hint at}, to allude to lightly, indirectly, or
      cautiously.

   Syn: To allude; refer; glance; touch.