What does bluff mean?
Bluff is a versatile English word with two quite separate meanings. In its most common use, to bluff is to deceive—to pretend you hold a stronger hand, greater knowledge, or firmer intention than you really do, hoping others will back down or believe you. The noun form captures both the act itself ('it was just a bluff') and, in an older geographic sense, a steep, broad cliff, especially one overlooking water. The verb entered American English in the nineteenth century, popularized by the card game poker, where bluffing is a core tactic; the phrase 'call someone's bluff'—challenging them to prove their claim—has passed into everyday speech. Bluffing carries connotations of boldness and bravado, sometimes admiringly, sometimes with suspicion. Whether in negotiation, sport, or casual conversation, bluff remains a vivid shorthand for confidence that outruns the truth.
To deceive someone by pretending to have a stronger position, greater ability, or firmer intention than is actually the case.
"She bluffed her opponents into folding by betting aggressively on a weak hand."
1. An act of deliberate deception based on false claims of strength or capability. 2. A steep, wide cliff or headland, especially beside water.
"His threat to quit was just a bluff—he had no other job lined up."
Rising steeply; having a blunt or squared-off front, typically describing coastal or riverbank terrain.
"They built their cottage on a bluff promontory above the bay."
This adjective use is relatively formal or descriptive, most often encountered in geography and landscape writing.
Standard plural, applies to the noun senses (acts of bluffing and steep cliffs).
"The coastline was marked by a series of dramatic bluffs."
The term 'bluff your way in' became so central to poker culture that the game's entire strategy of deception took its name from this word.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of bluff
The deceptive sense of bluff arose in American English during the early nineteenth century, gaining currency through the card game poker, where feigning a strong hand became a defining strategy. Its ultimate origin is uncertain, though it may derive from Dutch 'bluffen', meaning to boast or play recklessly. The geographic sense—a broad, steep cliff—is etymologically distinct, likely borrowed from Dutch or Low German terms for a projecting bank of land. The two meanings coexist in modern English without confusion in practice.
Related word forms
How bluff is actually used
Common in informal speech, especially in card-game contexts ('call his bluff'). The nautical/geographic sense (a steep headland) is entirely unrelated in meaning and appears mostly in place names like Davenport Bluff. The adjective sense describing terrain is chiefly used descriptively.
Easily confused with bluff
'Buff' means physically fit and muscular or an enthusiast of something, while 'bluff' refers to deception or a steep cliff.
'Bluster' is loud, aggressive but empty talk, whereas 'bluff' specifically involves pretending to have strength or intent one does not possess.