as in coasts
the land adjacent to a body of water
The state has mainly rocky coastline and few beaches. The plane flew along the eastern coastline.
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Recent Examples of coastlines
Initially, a tsunami warning was issued and residents in Cebu and the nearby provinces of Leyte and Biliran to avoid coastlines because of possible waves up to 3 feet.
—
Gabe Whisnant, MSNBC Newsweek, 30 Sep. 2025
In search of unspoiled vistas and rugged coastlines?
—Bridget Arsenault, Air Mail, 27 Sep. 2025
In Nigeria, aquaculture producers worked with the Acorn, an initiative of Rabobank, to restore mangroves, protecting coastlines while boosting fish populations.
—Felipe Arango, Sourcing Journal, 26 Sep. 2025
Rising seas swallowing coastlines.
—Antonio Maria Delgado, Miami Herald, 23 Sep. 2025
Adaptation for us means more than defending coastlines.
—Feleti Penitala Teo, Time, 22 Sep. 2025
The nine-dash line encompasses much of the South China Sea, including waters near the coastlines of Vietnam, the Philippines, and Malaysia.
—David C. Kang, Foreign Affairs, 19 Sep. 2025
Özçelik and colleagues spent two weeks in June 2022 surveying 10 muddy sites along the existing coastlines by foot.
—Andrew Paul, Popular Science, 18 Sep. 2025
These stunning shorebirds can be found along North and South American coastlines and wetlands.
—New Atlas, 17 Sep. 2025
Gabe Whisnant, MSNBC Newsweek, 30 Sep. 2025
In search of unspoiled vistas and rugged coastlines?
—Bridget Arsenault, Air Mail, 27 Sep. 2025
In Nigeria, aquaculture producers worked with the Acorn, an initiative of Rabobank, to restore mangroves, protecting coastlines while boosting fish populations.
—Felipe Arango, Sourcing Journal, 26 Sep. 2025
Rising seas swallowing coastlines.
—Antonio Maria Delgado, Miami Herald, 23 Sep. 2025
Adaptation for us means more than defending coastlines.
—Feleti Penitala Teo, Time, 22 Sep. 2025
The nine-dash line encompasses much of the South China Sea, including waters near the coastlines of Vietnam, the Philippines, and Malaysia.
—David C. Kang, Foreign Affairs, 19 Sep. 2025
Özçelik and colleagues spent two weeks in June 2022 surveying 10 muddy sites along the existing coastlines by foot.
—Andrew Paul, Popular Science, 18 Sep. 2025
These stunning shorebirds can be found along North and South American coastlines and wetlands.
—New Atlas, 17 Sep. 2025
Recent Examples of Synonyms for coastlines
Noun
-
Quieter shores include Tiger Shores, Ross Witham Beach, and Bathtub Beach.—
Kelsey Glennon,
Southern Living,
3 Oct. 2025
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Sunset Fest Cabo — the luxury event billed as a yacht-rock paradise on the sandy shores of Medano Beach in Cabo San Lucas, Mexico — is facing rough waters as a majority of the artists scheduled for the three-day lineup have suddenly dropped from the roster.—
Charisma Madarang,
Rolling Stone,
1 Oct. 2025
Noun
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Swells from Humberto are likely to cause dangerous surf and life-threatening rip current conditions, affecting beaches of the northern Caribbean, Bahamas, Bermuda, and much of the east coast of the United States over the next several days.—
MIAMI HERALD HURRICANE BOT,
Miami Herald,
30 Sep. 2025
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The most popular beaches for swimming and lounging are dotted with brightly colored umbrellas and chairs, but there are also those that are a bit more remote and undeveloped.—
Lydia Mansel,
Travel + Leisure,
30 Sep. 2025
Cite this Entry
“Coastlines.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/coastlines. Accessed 6 Oct. 2025.
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