fin definition, meaning - what is fin in the British English Dictionary & Thesaurus - Cambridge Dictionaries Online

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English definition of “fin”

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fin

noun [C] uk   us   /fɪn/

fin noun [C] (FISH/AIRCRAFT)

a thin vertical part sticking out of the body of especially a fish or an aircraft that helps balance and movement: We could see the fin of a shark as it slowly circled our boat. a fish's dorsal fin The aircraft has a long tail fin.

fin noun [C] (HAIRSTYLE)

a hairstyle, usually worn by men, where the hair is combed from the sides towards the centre so that it sticks up like a fin on top of the head
(Definition of fin from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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