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

Dumfries, Scotland was chosen to resemble the New England coastline and Glasgow stood in for Sweden. Marie Milano, Country Living, "What Is 'The Wife' Movie About? Everything to Know About Glenn Close's New Film," 24 Feb. 2019 Currently, energy companies including Italy’s Eni, France’s Total and ExxonMobil are involved in a hydrocarbons search in the waters of Cyprus’ southern coastline. Menelaos Hadjicostis, The Seattle Times, "Israel: ‘Much safer’ Mediterranean with Cyprus teamwork," 12 Feb. 2019 DP World is one of the few international companies to invest in the country, whose coastline sits on the narrow passage that links the Indian Ocean to the Suez Canal. Matina Stevis-gridneff, WSJ, "Terrorist Attacks Show Rising Risks for Business in Somalia," 5 Feb. 2019 Six Senses Kaplankaya has also opened its doors on the shore, making the Aegean coastline a must-visit after spending some time in the big city. Carrie Goldberg, Harper's BAZAAR, "The 19 Best Places to Travel in 2019," 10 Jan. 2019 For marine debris, cleaning up nearshore and coastline regions is akin to turning off the faucets. Tabor Wordelman, Teen Vogue, "You Can't Just "Clean Up" the Plastic in the Ocean. Here's Why.," 18 Dec. 2018 Some of the warming that’s baked in will also force millions to retreat from coastlines. Umair Irfan, Vox, "A major climate report will slam the door on wishful thinking," 5 Oct. 2018 The 390-foot-long ship is an older tank-landing ship, designed to run up on enemy coastlines and disgorge 10 tanks or 500 tons of cargo. Kyle Mizokami, Popular Mechanics, "China’s Railgun Has Reportedly Gone to Sea," 31 Dec. 2018 The African penguin, as its name suggests, can be found on southern African coastlines. Gemma Tarlach, Discover Magazine, "20 Things You Didn't Know About ... Penguins," 6 Nov. 2018

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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Statistics for coastline

Last Updated

11 Mar 2019

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Time Traveler for coastline

The first known use of coastline was in 1856

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English Language Learners Definition of coastline

: the land along the edge of a coast

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


a shady place in a garden or forest

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