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sixty-fourth

[ siks-tee-fawrth, -fohrth ]
/ ˈsɪks tiˈfɔrθ, -ˈfoʊrθ /
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adjective
next after the sixty-third; being the ordinal number for 64.
being one of 64 equal parts.
noun
a sixty-fourth part, especially of one (1/64).
the sixty-fourth member of a series.
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Which of the following nouns has an irregular plural form?
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

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