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Synonyms

sea change

American  

noun

  1. a striking change, as in appearance, often for the better.

  2. any major transformation or alteration.

  3. a transformation brought about by the sea.


sea change British  

noun

  1. a seemingly magical change, as brought about by the action of the sea

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of sea change

First recorded in 1600–10

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.

“This is a sea change and people should wake up and realize we’re living in a new world.”

From The Wall Street Journal • May 18, 2026

The results suggested a continued sea change in the way investors are assessing the so-called Magnificent Seven tech giants.

From Barron's • Apr. 30, 2026

That is a sea change, and it’s something I haven’t totally wrapped my mind around yet.

From Slate • Apr. 13, 2026

This sea change was a long time coming.

From MarketWatch • Mar. 27, 2026

As the movement escalated, it became clear that a sea change was occurring not just in America but within black America itself.

From "The Best of Enemies" by Osha Gray Davidson

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