Third-person singular simple present indicative form of bluff.(verb)
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Use "bluffs" in a sentence
"Coulees (as used in this area of Southwestern Wisconsin) are the valleys between river bluffs, derived from the French word 'couler', to flow."
"He called the bluffs on the other side of the wide valley a mystical place, the land of “honey and cobras.”"
"His only option, analysts say, will be to hold the prospect of a fiscal crisis over the heads of his opponents, calling their bluffs to take down his government as he pushes through painful cuts."