sixty-four

adjective

Definition of sixty-four

 (Entry 1 of 3)

: being one more than 63 in number sixty-four years — see Table of Numbers
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Definition of sixty-four (Entry 2 of 3)

: 64 countable persons or things not specified but under consideration and being enumerated sixty-four are here sixty-four were found

sixty-four

noun
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Definition of sixty-four (Entry 3 of 3)

1 : four and 60 : four times 16 : the square of 8 : the cube of 4
2a : 64 units or objects a total of sixty-four
b : a group or set of 64
3 : the numerable quantity symbolized by the arabic numerals 64
4 : the 64th in a set or series