coastline
Americannoun
-
the outline or contour of a coast; shoreline.
-
the land and water lying adjacent to a shoreline.
noun
Etymology
Origin of coastline
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.
Forces deployed along Iran’s coastline have more extensive exposure to armed operations than those in the country’s interior, which hasn’t seen direct combat since the war with Iraq.
From The Wall Street Journal • Apr. 3, 2026
It includes a collection of 24 luxury waterfront townhomes set along a largely untouched coastline.
From MarketWatch • Apr. 1, 2026
Kharg experienced major development during Iran's oil boom in the 1960s and 1970s because much of the coastline on the mainland was too shallow to accommodate supertankers.
From Barron's • Mar. 27, 2026
Sea ice is remaining attached to Alaska's northern coastline for shorter periods each year, based on 27 years of data analyzed by scientists at the University of Alaska Fairbanks.
From Science Daily • Mar. 27, 2026
A giant oil spill off Santa Barbara blackened California’s coastline.
From "The Omnivore's Dilemma" by Michael Pollan
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.
