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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

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.

Some of Wales' most expensive beach huts have been submerged in sand after the coastline was battered by storms.

From BBC

Seagrass is one of the most powerful natural tools for tackling climate change and can protect coastlines from storms and erosion, according to Wilder Humber – a partnership of the Yorkshire and Lincolnshire wildlife trusts.

From BBC

A couple attempting to walk the coastline of mainland Great Britain plan to re-start their journey after their first attempt had to be abandoned when one of them suffered an injury.

From BBC

Tasneem and Zubair Makda, who also fell into the water before losing sight of her, said: "We hold on to hope that she may have reached safety somewhere along the coastline".

From BBC

Experts, residents and researchers explain what is happening to the coastline here - and whether more communities could face the same future.

From BBC

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.