coast·​line | \ ˈkōs(t)-ˌlīn How to pronounce coastline (audio) \

Definition of coastline

1 : a line that forms the boundary between the land and the ocean or a lake
2 : the outline of a coast

Examples of coastline in a Sentence

The plane flew along the eastern coastline.
Recent Examples on the Web Cones: the secret sauce to opening up this beach Walking, running, swimming and surfing along our beautiful coastline is awesome, but so is lounging on a chair with a good book and Doritos. Arlene Martinez, USA TODAY, "In CA: Essential workers shouldn't be deported, immigration attorney says," 27 May 2020 Norway’s cuisine has been shaped by its 63,000-mile coastline, by its long winters and brief summers, by the forests that cover a third of its surface, and by the mountains that cut off the west from the east. National Geographic, "Gordon Ramsay Braves Norway’s Winter Viking Season," 20 May 2020 The deal prompted concern in India about its geopolitical rival China developing a port close to its southern coastline for future military uses. Anusha Ondaatjie,, "India, Sri Lanka Discuss Ways to Fight Terrorism, Boost Trade," 10 May 2020 Gainesville There’s more to Florida than its coastlines: Gainesville is about 75 miles from each coast, in the north central area, with a population of about 134,000. Patricia Doherty, Travel + Leisure, "10 Best Places to Retire in Florida," 28 Apr. 2020 This New England state has many harbor towns on its southern coastline along Long Island Sound, as well as industrial cities and rural towns and villages further inland. Alan Taylor, The Atlantic, "Connecticut: Images of the Constitution State," 12 Apr. 2020 That may be most obvious along our coastlines, where the ever-more-rapidly-rising sea is suddenly shifting what had been a line constant throughout human history. Bill Mckibben, The New Yorker, "The Nature of Crisis," 26 Mar. 2020 Plastic stuff is everywhere and our coastlines are suffering horrendously. Rania Aniftos, Billboard, "Ellie Goulding Brings Her Generosity to Christmas in Philanthropic 'River' Video," 4 Dec. 2019 India’s financial capital, Mumbai, benefits from its coastline, as do cities like Thiruvananthapuram in Kerala state. Manavi Kapur, Quartz India, "Many Delhi residents want to escape the smog. But where can they go?," 4 Nov. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'coastline.' 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 coastline

1856, in the meaning defined at sense 1

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Time Traveler for coastline

Time Traveler

The first known use of coastline was in 1856

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Statistics for coastline

Last Updated

2 Jun 2020

Cite this Entry

“Coastline.” Dictionary, Merriam-Webster, Accessed 6 Jun. 2020.

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How to pronounce coastline (audio)

English Language Learners Definition of coastline

: the land along the edge of a coast

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