1
a
: a great body of salt water that covers much of the earth
broadly
: the waters of the earth as distinguished from the land and air
b
: a body of salt water of second rank more or less landlocked
the Mediterranean sea
c
: ocean
d
: an inland body of water
—used especially for names of such bodies
the Caspian Sea
2
a
: surface motion on a large body of water or its direction
also
: a large swell or wave
—often used in plural
heavy seas
b
: the disturbance of the ocean or other body of water due to the wind
3
: something likened to the sea especially in vastness
a sea of faces
4
: the seafaring life
5
sea
adjective
Examples of sea in a Sentence
the seas of the Southern Hemisphere
millions of plants and animals live in the sea
Recent Examples on the Web
Instead, take time to appreciate the unbelievable views of the sea and sky (hence the name).
—
Miriam Porter, Forbes.com, 25 July 2025
Each design thoughtfully addresses these elements through a rhythmic composition and layering of spaces, creating a balance between openness and privacy, environmental protection, and shading, while maximizing breathtaking beach and sea views.
—Robb Report Studio, Robb Report, 25 July 2025
In South Beach’s tranquil Palm View neighborhood, a once-stylish house gone shabby offers a case study in a complicated conflict facing many South Florida communities threatened by rising seas, tides and storm surge.
—Ashley Miznazi, Miami Herald, 25 July 2025
Back then, the Grand Canyon was closer to the equator, and the region was covered by a warm, shallow sea teeming with burgeoning life — aquatic creatures resembling modern-day shrimp, pill bugs and slugs — all developing new ways to exploit the abundant resources.
—Kameryn Griesser, CNN Money, 24 July 2025
See All Example Sentences for sea
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Miriam Porter, Forbes.com, 25 July 2025
Each design thoughtfully addresses these elements through a rhythmic composition and layering of spaces, creating a balance between openness and privacy, environmental protection, and shading, while maximizing breathtaking beach and sea views.
—Robb Report Studio, Robb Report, 25 July 2025
In South Beach’s tranquil Palm View neighborhood, a once-stylish house gone shabby offers a case study in a complicated conflict facing many South Florida communities threatened by rising seas, tides and storm surge.
—Ashley Miznazi, Miami Herald, 25 July 2025
Back then, the Grand Canyon was closer to the equator, and the region was covered by a warm, shallow sea teeming with burgeoning life — aquatic creatures resembling modern-day shrimp, pill bugs and slugs — all developing new ways to exploit the abundant resources.
—Kameryn Griesser, CNN Money, 24 July 2025
See All Example Sentences for sea
Cite this Entry
“Sea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sea. Accessed 29 Jul. 2025.
Copy CitationKids Definition
sea
noun1
a
: a great body of salty water that covers much of the earth
also
: the waters of the earth
b
: a body of salt water not as large as an ocean
the Mediterranean Sea
c
d
: an inland body of water either salt or fresh
the Sea of Galilee
2
: rough water
a high sea swept the deck
3
: something suggesting the sea (as in great size or depth)
a golden sea of wheat
4
: a life involving marine travel
hoped to make a career of the sea
5
sea
adjective
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