eighty(redirected from eightieths)
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1. the cardinal number that is the product of ten and eight
2. a numeral, 80, LXXX, etc., representing this number
3. the numbers 80-89, esp a person's age or the year of a particular century
4. the amount or quantity that is eight times as big as ten
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005