high sea
Americannoun
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the sea or ocean beyond the three-mile limit or territorial waters of a state or nation.
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Usually high seas.
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the open, unenclosed waters of any sea or ocean; common waterway.
The book was inspired by her own adventures on the high seas.
Maritime pollution on the high seas is becoming a matter of grave consequence for coastal communities.
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Law. the area within which transactions are subject to the jurisdiction of the admiralty court.
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Other Word Forms
Etymology
Origin of high sea
First recorded before 1100
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.
"Gus" lived during the Maastrichtian period, some 72 to 66 million years ago, which was characterized by a warm climate, high sea levels and vast floodable coastal plains.
From Barron's ● Jul. 1, 2026
As for the rest of the season, high sea surface temperatures remain conducive for further storms.
From BBC ● Oct. 11, 2024
A 2021 paper from researchers at the University of Washington found a third variable that appears to correlate with more velella sightings: unusually high sea surface temperatures.
From Los Angeles Times ● May 3, 2024
Using peer-reviewed research, these visual projections show how the climate and energy choices we make this decade will influence how high sea levels rise in the future.
From National Geographic ● Jan. 16, 2024
The assembly looked with him, considered the vast stretches of water, the high sea beyond, unknown indigo of infinite possibility, heard silently the sough and whisper from the reef.
From "Lord of the Flies" by William Golding
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
