ma·​rine | \ mə-ˈrēn How to pronounce marine (audio) \

Definition of marine

 (Entry 1 of 2)

1a : 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



Definition of marine (Entry 2 of 2)

1a : 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

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Synonyms for marine

Synonyms: Adjective

maritime, oceanic, pelagic

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Examples of marine in a Sentence


marine animals such as dolphins and whales he loves collecting little marine creatures while at the beach


He is a former U.S. Marine. the U.S. Army, Navy, Air Force, and Marines
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Recent Examples on the Web: Adjective

The Frenchman got an assist from JCOMMOPS, an international marine observatory, which provided him with markers to drop off at various parts of the sea to help study ocean currents. David Grossman, Popular Mechanics, "This 72-Year-Old Frenchman Just Crossed the Atlantic Ocean in a Giant Orange Barrel," 7 May 2019 Shop Allbirds Tree Breezers Tree Breezers come in four super-pretty marine-themed colors, from Seashell, a pretty slate gray, to Caribbean, a bright turquoise blue. Shanon Maglente, Good Housekeeping, "Allbirds Just Dropped the Most Comfortable Ballet Flat You'll Ever Wear," 2 May 2019 As the oceans slowly soak up heat from the atmosphere, marine species will be affected in different ways. David Keyton, The Seattle Times, "Off the Seychelles, a dive into a never-seen landscape," 13 Apr. 2019 However, these marine creatures are widely known for their symmetry in shape, whereas stylophorans are amorphous and strange in physical composition. David Grossman, Popular Mechanics, "A 150-Year Old Weird Ancient Animal Mystery, Solved," 22 Feb. 2019 These silent killers wrap themselves around reefs and claiming the lives of millions of marine creatures great and small, from sponges and tiny crustaceans to dolphins, sharks, and whales. Elena Bectoros, The Christian Science Monitor, "Divers help to remove abandoned, destructive 'ghost' nets," 8 June 2018 Silent killers carried by the currents, wrapping themselves around reefs and claiming the lives of millions of marine creatures great and small, from sponges and tiny crustaceans to dolphins, sharks and whales. Elena Becatoros, Fox News, "Cleaning the seabed: Divers halt the carnage of 'ghost' nets," 8 June 2018 Tiny marine creatures flourished thanks to the circulation of nutrient-rich water. Katherine Kornei, Science | AAAS, "Life rebounded just years after the dinosaur-killing asteroid struck," 30 May 2018 Named after their short, elephant-like snout, these marine creatures can weigh as much as 5,500 pounds. Tyler Moss, Condé Nast Traveler, "8 Best Places to See Wildlife in the U.S.," 23 Apr. 2018

Recent Examples on the Web: Noun

Over 40 percent of all amphibian species are vulnerable to extinction, and the same can be said for a over a third of marine mammals. David Grossman, Popular Mechanics, "Our Planet Just Got a Health Check, and the Diagnosis Is Grim," 6 May 2019 Divers and snorkelers can explore a wonderland of some 750 species of fish in the surrounding sea, and there are private marine safaris and deserted island excursions—with picnics—at their beck and call. Klara Glowczewska, Town & Country, "The Best Places to Travel in 2019," 7 Dec. 2018 One is Raw Elements, whose marine-friendly products are sampled and sold at a number of resorts across Hawaii. Jay Jones,, "Choose the right sunscreen when you visit Hawaii. Some types may soon be banned," 9 May 2018 This explosion, and subsequent fires (which burned for 2-1/2 days afterwards), killed 1,177 sailors and marines, or about 80 percent of the crew on board. Matt Blitz, Popular Mechanics, "Pearl Harbor Still Holds a Few Mysteries," 7 Dec. 2018 The airline will replace the plastic utensils with Forest Stewardship Council (FSC)-certified, white birch stir sticks and a bamboo alternative for the citrus picks; non-plastic, marine-safe straws will be available upon request. Katherine Lagrave, Condé Nast Traveler, "Alaska Airlines Ditches Plastic Straws on All Flights," 21 May 2018 The pipeline would connect to a new marine terminal that Houston's Buckeye Partners, Phillips and Andeavor are building, with an initial storage capacity of 3.4 million barrels. Collin Eaton, Houston Chronicle, "Phillips 66 Partners moving ahead with West Texas pipeline system," 25 Apr. 2018 One marine was killed and twelve others were wounded, according to the Associated Press. Caleb Downs, San Antonio Express-News, "Mexican governor warns citizens not to travel to U.S. via Reynosa-McAllen bridge," 29 Mar. 2018 Previous studies on hawksbill turtles already have helped Omani and Emirati officials begin rethinking boundaries of some marine protected areas. National Geographic, "Searching for Elusive Green Sea Turtles in the Persian Gulf," 16 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'marine.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of marine


15th century, in the meaning defined at sense 1a


1669, in the meaning defined at sense 1a

History and Etymology for marine

Adjective and Noun

Middle English, from Latin marinus, from mare sea; akin to Old English mere sea, pool, Old High German meri sea, Old Church Slavonic morje

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Statistics for marine

Last Updated

14 May 2019

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Time Traveler for marine

The first known use of marine was in the 15th century

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More Definitions for marine



English Language Learners Definition of marine

 (Entry 1 of 2)

: of or relating to the sea or the plants and animals that live in the sea
: of or relating to sailing on the sea or doing business (such as trading) by sea



English Language Learners Definition of marine (Entry 2 of 2)

: a member of the U.S. Marine Corps or the British Royal Marines


ma·​rine | \ mə-ˈrēn How to pronounce marine (audio) \

Kids Definition of marine

 (Entry 1 of 2)

1 : of or relating to the sea marine animals
2 : of or relating to the navigation of the sea : nautical marine charts
3 : of or relating to soldiers in the United States Marine Corps marine barracks



Kids Definition of marine (Entry 2 of 2)

1 : a soldier of the United States Marine Corps
2 : the ships of a country

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More from Merriam-Webster on marine

Rhyming Dictionary: Words that rhyme with marine

Thesaurus: All synonyms and antonyms for marine

Spanish Central: Translation of marine

Nglish: Translation of marine for Spanish Speakers

Britannica English: Translation of marine for Arabic Speakers Encyclopedia article about marine

Comments on marine

What made you want to look up marine? Please tell us where you read or heard it (including the quote, if possible).


a strong desire or propensity

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