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
Lisa Cericola, Southern Living, 31 May 2025
The team hopes that their work will prompt further investigation into the sensory biology of marine mammals and how these majestic animals have evolved and adapted over time.
—Stephanie Edwards, Discover Magazine, 30 May 2025
Wendy Grossman Kantor, People.com, 23 May 2025
He has been honored as a war hero after stepping on a landmine in Afghanistan while carrying another marine, WTAE reported.
—Kate Linderman, Miami Herald, 23 May 2025
See All Example Sentences for marine
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Adjective
The presence of comb jellies and a marine plankton called dinoflagellates give the water a shimmering blue-green glow.
—Lisa Cericola, Southern Living, 31 May 2025
The team hopes that their work will prompt further investigation into the sensory biology of marine mammals and how these majestic animals have evolved and adapted over time.
—Stephanie Edwards, Discover Magazine, 30 May 2025
Noun
The marine's toddler was sitting on Wilson's lap, playing with the medals on his dress uniform, including a Purple Heart.
—Wendy Grossman Kantor, People.com, 23 May 2025
He has been honored as a war hero after stepping on a landmine in Afghanistan while carrying another marine, WTAE reported.
—Kate Linderman, Miami Herald, 23 May 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 4 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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