Open English Wordnet
Nouns
(n)bluffa high steep bank (usually formed by river erosion) (n)bluffpretense that your position is stronger than it really is“his bluff succeeded in getting him accepted” (n)bluff, four flushthe act of bluffing in poker; deception by a false show of confidence in the strength of your cards Verbs
(v)bluff, bluff outdeceive an opponent by a bold bet on an inferior hand with the result that the opponent withdraws a winning hand (v)blufffrighten someone by pretending to be stronger than one really is Adjectives
(s)bluff, bold, sheervery steep; having a prominent and almost vertical front“a bluff headland”,
“where the bold chalk cliffs of England rise”,
“a sheer descent of rock” (s)bluffbluntly direct and outspoken but good-natured“a bluff but pleasant manner”,
“a bluff and rugged natural leader”