fin noun - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com

Definition of fin noun from the Oxford Advanced American Dictionary

fin

noun

NAmE//fɪn//

1a thin, flat part that sticks out from the body of a fish, used for swimming and maintaining balance

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2a thin, flat part that sticks out from the body of a vehicle, an aircraft, etc., used for improving its balance and movement tail fins

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