coastline
Americannoun
-
the outline or contour of a coast; shoreline.
-
the land and water lying adjacent to a shoreline.
noun
Etymology
Origin of coastline
Vocabulary lists containing coastline
Mexico - Introductory
Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!
Southeast Asia - Introductory
Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!
East Asia - Middle School
Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!
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.
In 2025, scientists reported dinosaur tracks about 140 million years old on a remote stretch of coastline in South Africa's Western Cape.
From Science Daily • Apr. 24, 2026
His background as an expert on South America adds color and authenticity to his narrative, offering rich descriptions of the land, flora and fauna of the Peruvian-Chilean coastline and highlands as backdrop to Miller’s adventures.
From The Wall Street Journal • Apr. 17, 2026
But he insisted the concepts were born during his daily runs along the Los Angeles coastline.
From Los Angeles Times • Apr. 13, 2026
Addis has been looking to its neighbor and on-again, off-again enemy, Eritrea, a small pariah state to the east with a relatively long Red Sea coastline.
From Barron's • Apr. 7, 2026
After that, they’d have to switch to a road that followed the coastline, because Route 1 turned into the Turnpike for a long while.
From "Homecoming" by Cynthia Voigt
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.
