a United States bill worth 50 dollars
"He carefully folded his fifty to fit into the small envelope before handing it over."
A banknote or coin with a denomination of 50.
"He found an old fifty in his pocket while cleaning out his grandfather's safe."
"She received fifty dollars for her birthday and spent it all on new shoes."
Usage: Use this term to refer specifically to the physical currency, such as a fifty-dollar bill or a fifty-cent piece, rather than just writing out the number "fifty." It is often used in casual conversation when counting cash or discussing specific denominations found in wallets and piggy banks.
The cardinal number occurring after forty-nine and before fifty-one.
"She counted exactly fifty stars in the night sky."
The word fifty comes from the Germanic language family, originally meaning "five tens." Its modern form developed from Old English by combining the root for five with a suffix indicating a group of ten.