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
Lake Baikal, often described as an inland sea because of its enormous size, is notorious for sudden storms and icy conditions even during tourist season, according to National Geographic.
—
Jessica Mekles, FOXNews.com, 20 May 2026
The game clocked in at three hours and eight minutes, and featured a standing-room only crowd that included a sea of scouts and television reporters with everyone anxious to watch Feehan ace Brody Bumila on the mound.
—Justin Barrasso, Boston Herald, 19 May 2026
The latest iteration features intelligent control systems, controllable blades, and onboard batteries, and is meant to demonstrate its electricity generation performance in real sea conditions.
—New Atlas, 19 May 2026
Higher output at sea The findings arrive as governments worldwide intensify efforts to cut greenhouse gas emissions and expand renewable energy generation in line with the goals of the Paris Agreement.
—Georgina Jedikovska, Interesting Engineering, 19 May 2026
See All Example Sentences for sea
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Jessica Mekles, FOXNews.com, 20 May 2026
The game clocked in at three hours and eight minutes, and featured a standing-room only crowd that included a sea of scouts and television reporters with everyone anxious to watch Feehan ace Brody Bumila on the mound.
—Justin Barrasso, Boston Herald, 19 May 2026
The latest iteration features intelligent control systems, controllable blades, and onboard batteries, and is meant to demonstrate its electricity generation performance in real sea conditions.
—New Atlas, 19 May 2026
Higher output at sea The findings arrive as governments worldwide intensify efforts to cut greenhouse gas emissions and expand renewable energy generation in line with the goals of the Paris Agreement.
—Georgina Jedikovska, Interesting Engineering, 19 May 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 21 May. 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
Love words? Need even more definitions?
Merriam-Webster unabridged
