sea change
Americannoun
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a striking change, as in appearance, often for the better.
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any major transformation or alteration.
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a transformation brought about by the sea.
noun
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.
“It has been a sea change in the fundamentals underlying the fixed-income market and the economy,” Allen Sinai, president of consulting firm Decision Economics, said in an interview.
From The Wall Street Journal ● Oct. 11, 2026
Linkof does not present the approach as a sea change in curation.
From Los Angeles Times ● Sep. 9, 2026
Artificial intelligence has been a sea change for the workplace, with its capacity to research and analyze reams of information at lightning-fast speeds.
From MarketWatch ● Sep. 1, 2026
Leavitt's tenure as press secretary saw a revival of regular briefings that had petered out during the first term, but she presided over sea change on White House interactions with journalists.
From Barron's ● Aug. 12, 2026
The child’s name was minimalism, and its arrival heralded a sea change in the relationship between musical genres.
From "The Story of Music" by Howard Goodall
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
