coastline

noun

coast·​line ˈkōs(t)-ˌlīn How to pronounce coastline (audio)
1
: a line that forms the boundary between the land and the ocean or a lake
2
: the outline of a coast

Examples of coastline in a Sentence

The plane flew along the eastern coastline.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
According to the National Oceanic and Atmospheric Administration (NOAA)'s latest projections, sea levels along the U.S. coastlines are projected to rise, on average, around 10 to 12 inches by 2050. Daniel R. Depetris, Newsweek, 8 Dec. 2024 Travelers who have yet to venture beyond sun-and-sand destinations like the Mexican Caribbean or the Dominican Republic will embrace the beautiful, beachy coastline and luxe resorts of St. Kitts that ring true to every Caribbean stereotype. Carley Rojas Avila, Travel + Leisure, 4 Dec. 2024 Belize has a long Caribbean coastline that sees fewer hurricanes than other destinations in the region. Kathleen Peddicord, Forbes, 3 Dec. 2024 Jordan Strauss/Invision, AP Photo/Zach Bolinger The setting was likely somewhere on the California coastline, where Allen lives in the offseason. CBS News, 30 Nov. 2024 See all Example Sentences for coastline 

Word History

First Known Use

1856, in the meaning defined at sense 1

Time Traveler
The first known use of coastline was in 1856

Dictionary Entries Near coastline

Cite this Entry

“Coastline.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coastline. Accessed 19 Dec. 2024.

Kids Definition

coastline

noun
coast·​line ˈkōst-ˌlīn How to pronounce coastline (audio)
: the outline or shape of a coast
Last Updated: - Updated example sentences
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