eightieth Definition in the Cambridge English Dictionary
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Definition of “eightieth” - English Dictionary

Definition of "eightieth" - American English Dictionary

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eightiethadjective, adverb, noun [C]

 us   /ˈeɪt̬·i·əθ/
(in the ​position of) the ​number 80 in a ​series; 80th: They ​finished eightieth out of a hundred. An eightieth is one of eighty ​equalparts of something.
(Definition of eightieth from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "eightieth" - British English Dictionary

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eightiethordinal number

uk   /ˈeɪ.ti.əθ/  us   /-t̬i-/
80th written as a word

eightiethnoun [C]

uk   /ˈeɪ.ti.əθ/  us   /-t̬i-/
one of 80 ​equalparts of something
(Definition of eightieth from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
Translations of “eightieth”
in Chinese (Simplified) 第八十(的)…
in Chinese (Traditional) 第八十(的)…
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