noun
coastline
noun
1
The outline or shape of a coast, especially as seen on a map.
"Norway has one of the longest and most jagged coastlines in the world."
How to Use Coastline
Learner’s notesIn plain EnglishThe shape or outline of where the land meets the sea.
Common pairings
rugged coastline
along the coastline
Word Forms
coastlines plural
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Norway has one of the longest and most jagged _____ in the world.
Etymology
A compound of coast and line.