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high sea

American  
[hahy see] / ˈhaɪ ˈsi /

noun

  1. the sea or ocean beyond the three-mile limit or territorial waters of a state or nation.

  2. Usually high seas.

    1. 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.

    2. Law. the area within which transactions are subject to the jurisdiction of the admiralty court.


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.

See Examples For:

The giant beast lived some 72 to 66 million years ago -- a period characterized by a warm climate, high sea levels and vast floodable coastal plains.

From Barron's Jul. 14, 2026

Record high sea surface temperatures are partly to blame, as is a likely shift in regional weather patterns.

From BBC May 23, 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

Was help for the Redcoats on the high sea, heading for Boston?

From "George Washington, Spymaster" by Thomas B. Allen

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