coastline
Americannoun
-
coastlines
plural
-
the outline or contour of a coast; shoreline.
-
the land and water lying adjacent to a shoreline.
noun
Other Word Forms
Noun Inflected Forms
Etymology
Origin of coastline
Vocabulary lists containing coastline
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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.
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Australia's military uses the small uncrewed boats to quietly surveil its vast northern coastline, powered by a solar mast and wind.
From Barron's ● Oct. 16, 2026
These shuttle ships use a route close to Oman's coastline.
From BBC ● Oct. 16, 2026
“Those periods are really critical for the fate of the California coastline and infrastructure this winter,” Cayan said.
From Los Angeles Times ● Oct. 12, 2026
Africa’s richest man wants to turn a pristine coastline into an oil hub.
From The Wall Street Journal ● Oct. 8, 2026
It was on the same continent as Patuxet, but between them were a thousand miles of rocky coastline and the Mi’kmag and Abenaki alliances, which were at war with one another.
From "1491" by Charles C. Mann
The satellite's ocean and land color instrument has already delivered detailed images of landscapes and coastlines, while its radar altimeter has produced encouraging measurements of ocean and ice sheet elevations.
From Science Daily ● Oct. 12, 2026
Based on the latest projections, the coastlines of Alabama and Mississippi could be the most affected, Molchanov noted.
From MarketWatch ● Oct. 9, 2026
The state’s coastlines have been inundated with high surf for much of the summer, leading to severe erosion at some of the state’s most popular beaches.
From Los Angeles Times ● Oct. 2, 2026
The retreating ice exposes Arctic coastlines to waves, worsening coastal erosion and raising risks for coastal communities and infrastructure, the report warned.
From Barron's ● Sep. 30, 2026
I was awed by the immense beauty of South Africa, seen from high up in the clouds: rolling hills and plains, meandering rivers and mountain ranges, thick forests, magnificent coastlines, luscious farmland.
From "Kaffir Boy: An Autobiography" by Mark Mathabane
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Get a wordDefinitions 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.
