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
Synonyms
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
Antonio Planas, NBC News, 13 Nov. 2024
Other animal sightings that are possible all year long include manta rays, dolphins, turtles, and various marine birds.
—Zachary Rabinor, Travel + Leisure, 5 Nov. 2024
Melissa Cristina Marquez, Forbes, 3 Nov. 2024
Crews were notified of the fire just before 9 p.m. after fire department officials returning from nighttime marine training noticed smoke billowing from the residence at 1681 Main St., according to Fire Chief Jermaine Atkinson.
—Richard Chumney, Connecticut Post, 28 Sep. 2024
See all Example Sentences for marine 
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Adjective
Police have not determined whether the person was killed in a slaying or whether a marine animal or a boating accident could have led to a decapitation, Martin said.
—Antonio Planas, NBC News, 13 Nov. 2024
Other animal sightings that are possible all year long include manta rays, dolphins, turtles, and various marine birds.
—Zachary Rabinor, Travel + Leisure, 5 Nov. 2024
Noun
Lifeguards and marine conservation organizations have been advocating for the stingray shuffle as a standard safety practice, emphasizing its role in mitigating human-marine animal interactions, yet it is not known by all.
—Melissa Cristina Marquez, Forbes, 3 Nov. 2024
Crews were notified of the fire just before 9 p.m. after fire department officials returning from nighttime marine training noticed smoke billowing from the residence at 1681 Main St., according to Fire Chief Jermaine Atkinson.
—Richard Chumney, Connecticut Post, 28 Sep. 2024
See all Example Sentences for marine
Dictionary Entries Near marine
Cite this Entry
“Marine.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/marine. Accessed 25 Nov. 2024.
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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