#1 bluff n. a high steep bank (usually formed by river erosion). wn
#2 bluff n. pretense that your position is stronger than it really is; "his bluff succeeded in getting him accepted". wn
#3 bluff v. [bluff out] deceive an opponent by a bold bet on an inferior hand with the result that the opponent withdraws a winning hand. wn
#4 bluff s. [bold, sheer] very steep; having a prominent and almost vertical front; "a bluff headland"; "where the bold chalk cliffs of England rise"; "a sheer descent of rock". wn
#5 bluff v. frighten someone by pretending to be stronger than one really is. wn
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