1
: being number 81 in a countable series
the eighty-first day
see Table of Numbers
2
: being one of 81 equal parts into which something is divisible
an eighty-first share of the money
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1
: number 81 in a countable series
2
: the quotient of a unit divided by 81 : one of 81 equal parts of something
one eighty-first of the total
Dictionary Entries Near eighty-first
Cite this Entry
“Eighty-first.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/eighty-first. Accessed 22 Nov. 2024.
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