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 issue will likely explode after the third season of The White Lotus airs (Sicily's tourism soared by 50% after season two was set on its Italian coastline).
—
Alex Ledsom, Forbes, 19 Dec. 2024
The oil spill has impacted at least 60 kilometers of coastline, Greenpeace Ukraine said Tuesday.
—Gianluca Mezzofiore, CNN, 18 Dec. 2024
Tremors lasted around four minutes and much of Alaska's coastline was submerged and coastal forests were destroyed by sea water.
—Raja Krishnamoorthi, Newsweek, 15 Dec. 2024
Hawaii’s most famous coastline, Waikiki Beach, won't be the same in 50 years.
—Daniel De Visé, USA TODAY, 13 Dec. 2024
See all Example Sentences for coastline 
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Alex Ledsom, Forbes, 19 Dec. 2024
The oil spill has impacted at least 60 kilometers of coastline, Greenpeace Ukraine said Tuesday.
—Gianluca Mezzofiore, CNN, 18 Dec. 2024
Tremors lasted around four minutes and much of Alaska's coastline was submerged and coastal forests were destroyed by sea water.
—Raja Krishnamoorthi, Newsweek, 15 Dec. 2024
Hawaii’s most famous coastline, Waikiki Beach, won't be the same in 50 years.
—Daniel De Visé, USA TODAY, 13 Dec. 2024
See all Example Sentences for coastline
Dictionary Entries Near coastline
Cite this Entry
“Coastline.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coastline. Accessed 2 Jan. 2025.
Copy CitationKids Definition
coastline
noun
coast·line
ˈkōst-ˌlīn
: the outline or shape of a coast
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