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

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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
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Recent Examples on the Web: Adjective Although most visitors to the island come for its marine life and remote location, some are Napoleon fans -- who are infuriated by the good condition of Longwood. Julia Buckley, CNN, "The man on a remote island keeping Napoleon's flame alive," 5 May 2021 The funds will also help the school of agriculture, where students often partner with and learn from local farmers and marine life experts. Lillian Reed,, "How Maryland’s historically Black universities will use $577 million from state to close wealth gap, strengthen communities," 5 May 2021 The exotic appeal of the remote location includes white sand beaches, blue seas, marine life, and coral reefs. Patricia Doherty, Travel + Leisure, "Best Places to Travel in July," 30 Apr. 2021 Microparticles of these plastics are now being found in marine life and even breast milk., "Should Massachusetts prohibit the sale of new fur products in the state?," 29 Apr. 2021 Picture the mindset of factory farming applied to marine life and you’ve got the general idea. Matthew Scully, National Review, "Into the Deep with Seaspiracy," 28 Apr. 2021 Although the San Diego County plant has been gulping seawater, spitting out brine and killing tiny marine life since 2015, mitigation has yet to begin. Bettina Boxall, Los Angeles Times, "Questions linger about environmental impact of Poseidon plant," 28 Apr. 2021 The worst part about all of this is that nobody knows what the effects of the chemical might be on marine life in the region. Mike Wehner, BGR, "Someone dumped 25,000 barrels of toxic DDT off the coast of California," 28 Apr. 2021 Look for sponges made from recycled materials and dish soaps and detergents that are biodegradable and free of phosphates and other harmful materials that can threaten marine life. Washington Post, "20 ideas to help you go green in the kitchen," 26 Apr. 2021 Recent Examples on the Web: Noun Winston, who worked in Florida’s marine industry, among other things, before returning to his homeland, saw an untapped market. Michael Verdon, Robb Report, "How the Lush Caribbean Island of Dominica Became a Superyacht Haven," 18 Apr. 2021 First issued in 1990, the current list spotlights more than 100 safety recommendations in ten areas: aviation, rail, marine, pipeline and hazmat, and highway transport. Tanya Mohn, Forbes, "‘Most Wanted List’ For Boosting Safety Topped By Distracted Driving, Impaired Driving, And Speeding," 12 Apr. 2021 The marine, Riley (played by Parker Young), is still struggling to readjust to life back home. cleveland, "Did ‘United States of Al’ deserve all that criticism? New series from ‘Big Bang Theory’ creator premieres on CBS," 1 Apr. 2021 New Zealand marine industry officials had forecasted the event would provide a boon of many millions of dollars to local shipyards for refits and supplies. Michael Verdon, Robb Report, "New Zealand’s Millennium Cup Regatta Was Halted, So Race Crews Swam With the Dolphins Instead," 1 Apr. 2021 Droxler and Stéphan Jorry, a geologist at the IFREMER marine laboratory in Plouzané, France, describe their theory in the 2021 Annual Review of Marine Science. Alexandra Witze, Smithsonian Magazine, "Why Some Geologists Say Charles Darwin’s Theory of Coral Atoll Formation Is Wrong," 3 Mar. 2021 On March 6, Abbott announced the launch of Operation Lone Star, in which air, ground, marine, and tactical border security were added to high threat areas used by smugglers. Guillermo Contreras, San Antonio Express-News, "Vehicle that fled police crashes, killing 8 immigrants, driver is charged," 16 Mar. 2021 Bauman founded the program in 1997 and has received national attention in the marine and fishing industries. Emmett Hall,, "Ladies Let’s Go Fishing Foundation reeling in women anglers," 4 Mar. 2021 The increasing frequency of marine and land heatwaves has been linked toglobal warmingin previous studies. Todd Nelson, Star Tribune, "Cold Powdery Snow Means Icy PM Roads," 22 Jan. 2021

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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Time Traveler for marine

Time Traveler

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

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Statistics for marine

Last Updated

8 May 2021

Cite this Entry

“Marine.” Dictionary, Merriam-Webster, Accessed 9 May. 2021.

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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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Comments on marine

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