forty

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forty

1. the cardinal number that is the product of ten and four
2. a numeral, 40, XL, etc., representing this number
References in classic literature ?
Nobody ever HAD built above Fortieth Street--no, says I, nor above the Battery either, before Christopher Columbus discovered America.
Someone proposed a vast bonfire made out of the works of the Forty Academicians into which the Great Victorians might be hurled on their fortieth birthday.
To take possession of the moon in the name of the United States; to add a fortieth State to the Union; to colonize the lunar regions; to cultivate them, to people them, to transport thither all the prodigies of art, of science, and industry; to civilize the Selenites, unless they are more civilized than we are; and to constitute them a republic, if they are not already one!"