1
a
: of or relating to the sea
marine life
marine biology
b
: of or relating to the act or practice of sailing over the sea : nautical
a marine chart
c
: of or relating to the commerce (see commerce entry 1 sense 2) of the sea : maritime
marine law
d
: depicting the sea, seashore, or ships
a marine painter
2
: of or relating to marines (see marine entry 2 sense 2)
marine barracks
1
a
: the mercantile and naval shipping of a country
b
: seagoing ships especially in relation to nationality or class
2
: one of a class of armed services personnel serving on shipboard or in close association with a naval force
specifically
: a member of the U.S. Marine Corps
3
: an executive department (as in France) having charge of naval affairs
4
: a marine picture : seascape
Examples of marine in a Sentence
Adjective
marine animals such as dolphins and whales
he loves collecting little marine creatures while at the beach
Noun
He is a former U.S. Marine.
the U.S. Army, Navy, Air Force, and Marines
Recent Examples on the Web
Vitas Carosella, Forbes, 23 Feb. 2025
Somalia’s marine waters, rich with fisheries of species such as yellowfin tuna, blue marlin, swordfish and sardines, have historically helped the country’s fishing communities thrive.
—Soham Mitra, Lou Robinson and Patrick Gallagher, CNN, 22 Feb. 2025
Muri Assunção, New York Daily News, 16 Feb. 2025
Its freshness is spiked with coastal touches of marine and driftwood, while amberwood and white musk give it a second-skin coziness.
—Jenny Berg, Allure, 8 Feb. 2025
See All Example Sentences for marine
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Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
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Adjective
As politics continue to stifle climate action, experts like marine ecologist Carlos Duarte are turning to sports to sound the alarm that climate change requires immediate action.
—Vitas Carosella, Forbes, 23 Feb. 2025
Somalia’s marine waters, rich with fisheries of species such as yellowfin tuna, blue marlin, swordfish and sardines, have historically helped the country’s fishing communities thrive.
—Soham Mitra, Lou Robinson and Patrick Gallagher, CNN, 22 Feb. 2025
Noun
The 10-foot marine mammal, later identified as a female Risso’s dolphin, was first spotted by a resident walking along Albert’s Landing Beach in Amagansett before dawn on Friday.
—Muri Assunção, New York Daily News, 16 Feb. 2025
Its freshness is spiked with coastal touches of marine and driftwood, while amberwood and white musk give it a second-skin coziness.
—Jenny Berg, Allure, 8 Feb. 2025
See All Example Sentences for marine
Cite this Entry
“Marine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/marine. Accessed 3 Mar. 2025.
Copy CitationKids Definition
marine
2 of 2 noun1
: the commercial and naval shipping of a country
2
: one of a class of soldiers serving aboard ship or in association with a naval force
especially
: a member of the U.S. Marine Corps
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