fin
noun /fɪn/
/fɪn/
- a thin flat part that sticks out from the body of a fish, used for swimming and keeping balanceTopics Fish and shellfishc1
enlarge image - a thin flat part that sticks out from the body of a vehicle, an aircraft, etc., used for improving its balance and movement
enlarge image- tail fins
Word OriginOld English finn, fin, of Germanic origin; related to Dutch vin and probably ultimately to Latin pinna ‘feather, wing’.