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.
Munich's Allianz Arena is sculpted by thousands of diamond-shaped inflatable cushions, while Sydney's similarly named Allianz Stadium has a flatter facade smoothed with long bronze fins.
From BBC ● Aug. 23, 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
The hapless sunfish can weigh up to 2,000 kilograms and is distinct for both its size and peculiar shape featuring a flattened body and fins.
From Barron's ● Jul. 23, 2026
“Better than being an old sardine tin with a few fins left in it.”
From The Wall Street Journal ● Apr. 20, 2026
Since we still had a guidance problem, I spent the next couple of days in the basement, tinkering with fins and how to attach them.
From "October Sky" by Homer Hickam
