Definition of eighty-one 

(Entry 1 of 3)

: being one more than eighty in number eighty-one years — see Table of Numbers


Definition of eighty-one (Entry 2 of 3)

: 81 countable persons or things not specified but under consideration and being enumerated eighty-one are here eighty-one were found



Definition of eighty-one (Entry 3 of 3)

1 : one and 80 : three times 27 : nine nines : the square of nine

2a : 81 units or objects a total of eighty-one

b : a group or set of 81

3 : the numerable quantity symbolized by the arabic numerals 81

4 : the 81st in a set or series

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