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
Felicia Jackson, Forbes.com, 12 June 2025
Information on how red tide affects sawfish and other marine life will be shared, along with details on the MISS organization (Minorities in Shark Sciences) which is helping further shark research.
—Orlando Sentinel Staff, The Orlando Sentinel, 12 June 2025
Ashleigh Fields, The Hill, 10 June 2025
Turtles in our waters The Pacific leatherback sea turtle became the state marine reptile in 2012.
—Kurt Snibbe, Oc Register, 6 June 2025
See All Example Sentences for marine
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Adjective
Not only that but the IUCN estimates that 33% of sharks, rays, and marine mammals are now threatened with extinction, largely due to bycatch and overfishing.
—Felicia Jackson, Forbes.com, 12 June 2025
Information on how red tide affects sawfish and other marine life will be shared, along with details on the MISS organization (Minorities in Shark Sciences) which is helping further shark research.
—Orlando Sentinel Staff, The Orlando Sentinel, 12 June 2025
Noun
Civil rights organizations on Tuesday condemned the Trump administration for deploying thousands of soldiers and marines to Los Angeles after a wave of immigration protests.
—Ashleigh Fields, The Hill, 10 June 2025
Turtles in our waters The Pacific leatherback sea turtle became the state marine reptile in 2012.
—Kurt Snibbe, Oc Register, 6 June 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 18 Jun. 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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