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English definition of “eighth”

eighth

adjective, adverb, noun [C]    /eɪtθ, eɪθ/
(in the position of) the number 8 in a series; 8th: He finished eighth in the race. [C] Clarice was born on the eighth of August. An eighth is one of eight equal parts of something.
(Definition of eighth adjective, adverb, noun from the Cambridge Academic Content Dictionary © Cambridge University Press)
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