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for•ty

Pronunciation: (fôr'tē), [key]
—n., pl. -ties,
—adj.

—n.
1. a cardinal number, ten times four.
2. a symbol for this number, as 40 or XL or XXXX.
3. a set of this many persons or things.
4. forties,the numbers, years, degrees, or the like, from 40 through 49, as in referring to numbered streets, indicating the years of a lifetime or of a century, or degrees of temperature: His office is in the West Forties. Her parents are in their forties. The temperature will be in the forties.

—adj.
amounting to 40 in number.

Fort Worth

forty-eight

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forty (Thesaurus)

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for•ty

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