fin
noun
a membranous, winglike or paddlelike organ attached to any of various parts of the body of fishes and certain other aquatic animals, used for propulsion, steering, or balancing.
fins
-
present tense formof fin (3rd person singular).present tense
Used to describe things happening now or regularly.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“He has fins, as people say in this thing.”
From The Wall Street Journal ● Aug. 29, 2026
The shark made a few circles, its fins at times breaching the water’s surface as stunned fishermen looked on.
From Los Angeles Times ● Aug. 15, 2026
More high-quality footage is needed, particularly clear views of dorsal fins and eye patches, which can be used to identify individual animals.
From Science Daily ● Jul. 23, 2026
But the fins are swooped up by traders for the international markets, where they are used in shark-fin soup.
From Barron's ● Jul. 23, 2026
Renata kicked with her fins and glided toward it.
From "Wolfie & Fly" by Cary Fagan
