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English definition of “fortieth”

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adjective, adverb, noun [C]  /ˈfɔr·t̬i·əθ/ us  
(in the position of) the number 40 in a series; 40th: He married in his fortieth year. A fortieth is one of forty equal parts of something.
Translations of “fortieth”
in Chinese (Traditional) 第四十(個)…
in Chinese (Simplified) 第四十(个)…
(Definition of fortieth from the Cambridge Academic Content Dictionary © Cambridge University Press)
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