Synonyms for Bluff (same or very similar meaning)
WordNet sense 1 (very steep; having a prominent and almost vertical front):
bold, sheerWordNet sense 2 (having a sharp inclination):
steepWordNet sense 3 (deceive an opponent by a bold bet on an inferior hand with the result that the opponent withdraws a winning hand):
bluff outWordNet sense 4 (extended senses; direct in means or manner or behavior or language or action):
directFrom the ODE community, based on WordNetadd/edit