Thayer's Greek Lexicon

 1. prophecy
  1) a discourse emanating from divine inspiration and declaring
the purposes of God, whether by reproving and admonishing the
wicked, or comforting the afflicted, or revealing things
hidden; esp. by foretelling future events
  2) Used in the NT of the utterance of OT prophets
1b1. of the prediction of events relating to Christ's kingdom
and its speedy triumph, together with the consolations
and admonitions pertaining to it, the spirit of prophecy,
the divine mind, to which the prophetic faculty is due
1b2. of the endowment and speech of the Christian teachers
called prophets
1b3. the gifts and utterances of these prophets, esp. of the
predictions of the works of which, set apart to teach the
gospel, will accomplish for the kingdom of Christ