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
The venue had panoramic views of the Pacific Ocean and Santa Barbara coastline, an exclusive source reveals to PEOPLE.
—
Charna Flam, People.com, 31 May 2025
On the island of Tongatapu, the main island of Tonga, researchers scoured the southern coastline for evidence of violent weather events that occurred thousands of years ago.
—Lauren Liebhaber, Miami Herald, 30 May 2025
The tree grows up to twelve meters tall (nearly forty feet), typically along coastlines and riverbanks.
—Nina Foster, JSTOR Daily, 30 May 2025
Related Articles These South Florida beaches are new award-winners, touted as some of the best coastlines
There’s a new, snorkel-friendly reef off Hollywood
South Florida water parks are open!
—Kari Barnett, Sun Sentinel, 30 May 2025
See All Example Sentences for coastline
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Charna Flam, People.com, 31 May 2025
On the island of Tongatapu, the main island of Tonga, researchers scoured the southern coastline for evidence of violent weather events that occurred thousands of years ago.
—Lauren Liebhaber, Miami Herald, 30 May 2025
The tree grows up to twelve meters tall (nearly forty feet), typically along coastlines and riverbanks.
—Nina Foster, JSTOR Daily, 30 May 2025
Related Articles These South Florida beaches are new award-winners, touted as some of the best coastlines
There’s a new, snorkel-friendly reef off Hollywood
South Florida water parks are open!
—Kari Barnett, Sun Sentinel, 30 May 2025
See All Example Sentences for coastline
Cite this Entry
“Coastline.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coastline. Accessed 6 Jun. 2025.
Copy CitationKids Definition
coastline
noun
coast·line
ˈkōst-ˌlīn
: the outline or shape of a coast
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