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English definition of “fierce”

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fierce

adjective uk   /fɪəs/ us    /fɪrs/
B2 physically violent and frightening: a fierce attack/battle Two men were shot during fierce fighting last weekend.B2 strong and powerful: Fierce winds prevented the race from taking place. Firefighters had to retreat from the fierce heat.B2 showing strong feeling or energetic activity: The expansion plans will face fierce opposition/resistance from environmentalists. There is fierce competition to join the Special Branch. US informal difficult: The chemistry exam was fierce!
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fierceness
noun [U] uk   /-nəs/ us  
(Definition of fierce from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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