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
In 1892, her parents, Frederick and May Rindge, bought up an unimaginably enormous tract of land — 25 miles of Pacific coastline along Malibu and beyond.
—
Patt Morrison, Los Angeles Times, 14 Feb. 2026
The neighbourhood With a 1,600-mile-long coastline, Mozambique offers the Indian Ocean’s most underrated beach vacation, its low-key coastal enclaves saved from the overtourism that threatens to mar other idyllic destinations in the region by a civil war that only petered out in the late 1990s.
—Megan Spurrell, Condé Nast Traveler, 10 Feb. 2026
With 112 miles of coastline, Oahu has many gorgeous beaches to visit, such as Kuilima Cove, where calm waters are good for kids, and Makaha Beach, an ideal spot to take in the sunset.
—Lydia Mansel, Travel + Leisure, 9 Feb. 2026
These days, he is widely regarded as having the finest facility with metrical forms of any poet of his generation—a grasp of prosody both perfect and unpredictable, as if the complex metronome of that turbulent coastline ticked on within him.
—Kathryn Schulz, New Yorker, 9 Feb. 2026
See All Example Sentences for coastline
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Patt Morrison, Los Angeles Times, 14 Feb. 2026
The neighbourhood With a 1,600-mile-long coastline, Mozambique offers the Indian Ocean’s most underrated beach vacation, its low-key coastal enclaves saved from the overtourism that threatens to mar other idyllic destinations in the region by a civil war that only petered out in the late 1990s.
—Megan Spurrell, Condé Nast Traveler, 10 Feb. 2026
With 112 miles of coastline, Oahu has many gorgeous beaches to visit, such as Kuilima Cove, where calm waters are good for kids, and Makaha Beach, an ideal spot to take in the sunset.
—Lydia Mansel, Travel + Leisure, 9 Feb. 2026
These days, he is widely regarded as having the finest facility with metrical forms of any poet of his generation—a grasp of prosody both perfect and unpredictable, as if the complex metronome of that turbulent coastline ticked on within him.
—Kathryn Schulz, New Yorker, 9 Feb. 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 15 Feb. 2026.
Copy CitationKids Definition
coastline
noun
coast·line
ˈkōst-ˌlīn
: the outline or shape of a coast
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