bluff

nouns

a high steep bank (usually formed by river erosion)
is a type of (narrower)
a long ridge or pile
"a huge bank of earth"
pretense that your position is stronger than it really is
"his bluff succeeded in getting him accepted"
is a type of (narrower)
pretending with intention to deceive
the act of bluffing in poker; deception by a false show of confidence in the strength of your cards

verbs

deceive an opponent by a bold bet on an inferior hand with the result that the opponent withdraws a winning hand
is derived from
frighten someone by pretending to be stronger than one really is
is derived from
is a type of (narrower)
cause fear in
"The stranger who hangs around the building frightens me"; "Ghosts could never affright her"

adjectives

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"
bluntly direct and outspoken but good-natured
"a bluff but pleasant manner"; "a bluff and rugged natural leader"
is derived from
is similar to
straightforward in means or manner or behavior or language or action
"a direct question"; "a direct response"; "a direct approach"