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coastline

American  
[kohst-lahyn] / ˈkoʊstˌlaɪn /

noun

  1. the outline or contour of a coast; shoreline.

  2. the land and water lying adjacent to a shoreline.

coastline British  
/ ˈkəʊstˌlaɪn /

noun

  1. the outline of a coast, esp when seen from the sea, or the land adjacent to it

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of coastline

First recorded in 1855–60; coast + line 1

Vocabulary lists containing coastline

Mexico - Introductory

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Southeast Asia - Introductory

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East Asia - Middle School

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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.

Simon Measures, chair of Save Hemsby Coastline, said: "It was an utter shock."

From BBC • Nov. 25, 2023

Since then, he’s earned four associate’s degrees from Coastline Community College and a bachelor’s in communications studies from Cal State Los Angeles in 2020.

From Los Angeles Times • Nov. 3, 2023

Ghostwrite Mike is a student at Coastline College, transferring to Merced College in the fall.

From Slate • Jul. 19, 2023

Also in downtown Kirkland, Forge Pizza, with its Detroit-inspired pies, opens inside Coastline Burgers.

From Seattle Times • Apr. 8, 2023

Land boundaries: 0 km Coastline: 518 km Maritime claims:

From The 2008 CIA World Factbook by United States. Central Intelligence Agency

Definitions 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.