bluff

(noun) a high steep bank (usually formed by river erosion).

(noun) pretense that your position is stronger than it really is. Example: "His bluff succeeded in getting him accepted."

(noun) the act of bluffing in poker; deception by a false show of confidence in the strength of your cards. Synonyms: four flush.

(verb) deceive an opponent by a bold bet on an inferior hand with the result that the opponent withdraws a winning hand. Synonyms: bluff out.

(verb) frighten someone by pretending to be stronger than one really is.

(adj) very steep; having a prominent and almost vertical front. Synonyms: bold, sheer. Examples: "A bluff headland." "Where the bold chalk cliffs of england rise." "A sheer descent of rock."

(adj) bluntly direct and outspoken but good-natured. Examples: "A bluff but pleasant manner." "A bluff and rugged natural leader."