marine
Americanadjective
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of or relating to the sea; existing in or produced by the sea.
marine vegetation.
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pertaining to navigation or shipping; nautical; naval; maritime.
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serving on shipboard, as soldiers.
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of or belonging to the marines.
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adapted for use at sea.
a marine barometer.
noun
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a member of the U.S. Marine Corps.
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one of a class of naval troops serving both on shipboard and on land.
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seagoing ships collectively, especially with reference to nationality or class; shipping in general.
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a picture with a marine subject; seascape.
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naval affairs, or the department of a government, as in France, having to do with such affairs.
idioms
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dead marine, an empty bottle of beer or spirits.
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tell it / that to the marines! I don't believe your story; I refuse to be fooled.
adjective
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of, found in, or relating to the sea
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of or relating to shipping, navigation, etc
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of or relating to a body of seagoing troops
marine corps
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of or relating to a government department concerned with maritime affairs
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used or adapted for use at sea
a marine camera
noun
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shipping and navigation in general
the merchant marine
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(capital when part of a name) a member of a marine corps or similar body
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a picture of a ship, seascape, etc
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informal an expression of disbelief
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Relating to the sea.
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Relating to a system of open-ocean and unprotected coastal habitats, characterized by exposure to wave action, tidal fluctuation, and ocean currents and by the absence of trees, shrubs, or emergent vegetation. Water in the marine system is at or near the full salinity of seawater.
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Compare lacustrine palustrine riverine
Other Word Forms
- intermarine adjective
- nonmarine adjective
- semimarine adjective
- supermarine adjective
- unmarine adjective
Etymology
Origin of marine
1325–75; Middle English maryne < Middle French marin (feminine marine ) < Latin marīnus of the sea, derivative of mare sea; -ine 1
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“It is highly unlikely that trade into the Gulf will simply resume,” said Neil Roberts, head of marine and aviation at Lloyd’s Market Association, which represents Lloyd’s underwriters of ships’ insurance.
From The Wall Street Journal • Apr. 8, 2026
The free, donation-based marine educational center is home to swell sharks, sea urchins, jellyfish and more that will leave visitors of any age in awe.
From Los Angeles Times • Apr. 6, 2026
Fresh vegetables and freshwater are running out on many ships, so the sailors are using social media and very-high-frequency marine radios to share survival tips and tactics.
From The Wall Street Journal • Apr. 5, 2026
Because these parasites depend on multiple species to survive, their presence can reflect the overall strength of the marine ecosystem.
From Science Daily • Apr. 1, 2026
She gallops through the first ten pages, the story coming back: worldwide curiosity about what must be a mythical sea monster, famed marine biologist Professor Pierre Aronnax setting off to discover the truth.
From "All the Light We Cannot See" by Anthony Doerr
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
