open sea

American  

noun

1. the main body of a sea or ocean, especially the part that is outside territorial waters and not enclosed, or partially enclosed, by land.

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Example Sentences

Most existing wave energy devices perform well only under specific wave conditions, limiting their effectiveness in the constantly shifting environment of the open sea.

From Science Daily • Feb. 18, 2026

That was from an international rules-based order, under “American hegemony,” which he said “helped provide public goods, open sea lanes, a stable financial system, collective security, and support for frameworks for resolving disputes.”

From Barron's • Jan. 24, 2026

The style Matthiessen conjures is almost visual, with fragments of scene description and lines of unattributed dialogue arranged on the page like solitary brushstrokes or like breakers of spume on the open sea.

From The Wall Street Journal • Nov. 21, 2025

Setup: “I’m Still Here” originally opened on an open sea at dawn as a military helicopter arrives.

From Los Angeles Times • Feb. 11, 2025

On a morning in mid-April, 1687, the brigantine Dolphin left the open sea, sailed briskly across the Sound to the wide mouth of the Connecticut River and into Saybrook harbor.

From "The Witch of Blackbird Pond" by Elizabeth George Speare