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fin

The plural form of 'fin' is 'fins'. It is most commonly used as a noun to refer to the appendages of aquatic animals or stabilizing structures on vehicles. Informally, 'fin' is also a very common abbreviation for 'finish' or 'finished' in text messages and casual speech, especially to indicate completion or the end of something (e.g., 'I just wanna fin this homework'). This informal usage is distinct from the formal noun and verb meanings.

💬Casual Conversation

🎬Chloe's messy dorm room, late at night, surrounded by textbooks.

Chloe Smith

This econ paper is brutal. I just wanna fin this whole 'adulting' thing.

Maya

Sounds about right. Just power through it, you'll be fine.

💡

Chloe uses 'fin' as an informal abbreviation for 'finish', expressing her desire to be done with the difficult 'adulting' tasks like writing an econ paper. Maya, the pragmatic friend, advises her to 'power through' it, a phrasal verb meaning to complete something difficult by sheer effort.

Meanings

noun

A thin, flat, movable part of a fish or other aquatic animal, used for swimming and steering.

"shark fin soup"

noun

A stabilizing appendage on an aircraft, missile, or similar structure.

"rocket fin design"

verb (transitive)

[fin something]

To remove the fins from a fish.

"fin the salmon"

verb (intransitive)

To move or rise to the surface of the water, displaying a fin.

"shark finning"

Examples

The shark's fin cut through the calm water, a chilling sight.

My cat's tail looks like a tiny fin when she runs really fast.

Excuse me, where can I find a souvenir with a dolphin fin design?

This fish is overcooked; they even left the fin on, that's disgusting!

Please ensure all bags are clear of the emergency fin release mechanism.

Look at that tiny dog, his ears are like little fins flapping around!

Last Updated: May 22, 2026•Report an Error