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
The Coast Guard and partner search and rescue crews looked for him by air and sea, covering around 529 square miles, the statement said.
—
Sofia Saric
june 16, Miami Herald, 17 June 2026
In a sea of blue and white at KC Live, Mohammed, a Kansas City native, cheers on for Algeria an hour ahead of kickoff.
—The Kansas City Star, Kansas City Star, 17 June 2026
The journey is meant to revive a sea route not used for 300 years, and one that in the past could’ve been considered nearly impossible –– given the lack of maps and the crude vessels early navigators of the Bashi Channel once used.
—Wayne Chang, CNN Money, 17 June 2026
Penned by Azure Yacht Design & Naval Architecture, the 1,160-gross-tonne behemoth pairs a sturdy ice-class hull with a hybrid diesel-electric propulsion system for a range of 5,000 nautical miles and 30 days of autonomy at sea.
—Michael Verdon, Robb Report, 16 June 2026
See All Example Sentences for sea
Examples are automatically compiled from online sources to
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Sofia Saric
june 16, Miami Herald, 17 June 2026
In a sea of blue and white at KC Live, Mohammed, a Kansas City native, cheers on for Algeria an hour ahead of kickoff.
—The Kansas City Star, Kansas City Star, 17 June 2026
The journey is meant to revive a sea route not used for 300 years, and one that in the past could’ve been considered nearly impossible –– given the lack of maps and the crude vessels early navigators of the Bashi Channel once used.
—Wayne Chang, CNN Money, 17 June 2026
Penned by Azure Yacht Design & Naval Architecture, the 1,160-gross-tonne behemoth pairs a sturdy ice-class hull with a hybrid diesel-electric propulsion system for a range of 5,000 nautical miles and 30 days of autonomy at sea.
—Michael Verdon, Robb Report, 16 June 2026
See All Example Sentences for sea
Cite this Entry
“Sea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sea. Accessed 18 Jun. 2026.
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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