coastline
noun
coast·line
ˈkōs(t)-ˌlīn 
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
While best known for its coastline, Albania also boasts other incredible landscapes, like the mountainous Theth National Park and the Blue Eye spring.
—
Stacey Leasca, Travel + Leisure, 7 Mar. 2026
State leaders seem to care more about the undocumented, DEI, Don’t Say Gay, redistricting, Hope Florida and school vouchers while our coastlines are eroding.
—Letters To The Editor, The Orlando Sentinel, 7 Mar. 2026
Yes, many of the menus are tucked inside the tony enclaves of Newport Beach, but a handful of others cities, ones that don’t hug our sapphire coastline, are also serving up serious pinkies-up energy.
—Brock Keeling, Oc Register, 6 Mar. 2026
The reserve, which can reach as many as 714 million barrels, is stored in large, high-security underground salt caverns along the gulf coastlines of Louisiana and Texas.
—Max Zahn, ABC News, 6 Mar. 2026
See All Example Sentences for coastline
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Stacey Leasca, Travel + Leisure, 7 Mar. 2026
State leaders seem to care more about the undocumented, DEI, Don’t Say Gay, redistricting, Hope Florida and school vouchers while our coastlines are eroding.
—Letters To The Editor, The Orlando Sentinel, 7 Mar. 2026
Yes, many of the menus are tucked inside the tony enclaves of Newport Beach, but a handful of others cities, ones that don’t hug our sapphire coastline, are also serving up serious pinkies-up energy.
—Brock Keeling, Oc Register, 6 Mar. 2026
The reserve, which can reach as many as 714 million barrels, is stored in large, high-security underground salt caverns along the gulf coastlines of Louisiana and Texas.
—Max Zahn, ABC News, 6 Mar. 2026
See All Example Sentences for coastline
Cite this Entry
“Coastline.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coastline. Accessed 13 Mar. 2026.
Copy CitationKids Definition
coastline
noun
coast·line
ˈkōst-ˌlīn
: the outline or shape of a coast
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