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English definition of “fibre”

fibre

noun [U] (CHARACTER) UK (US fiber)     /ˈfaɪ.bər/ US  /-bɚ/
strength of character : He lacked the moral fibre to be leader .Strength of will and determination
(Definition of fibre noun (CHARACTER) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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