Skip to main content
coastline

coastline

60 1.4
The line where the land meets the sea
  • noun
  • /ˈkoʊstlaɪn/
translation icon : costa
  • Gentlemen, do you notice the coastline down there?
  • miles of coastline
  • shape of the coastline
  • kilometers of coastline

What's the length of a coastline of these lakes?

Autoplay Next

Examples

  • We'll be coming up on the Tunisian coastline in about an hour, which means Navarin Field is about two hours out.

  • OK, Which country has the longest coastline in the world?

  • How long is the coastline of the United Kingdom?

  • Moments ago, sections of the New York state coastline broke away.

  • We identified the coastline in the photograph.

  • When the plane was over the African coastline, the engines suddenly cut off.

    Fiction book (2000)
  • A beautiful rustic coastline stretches off as far as the eye can see.

    Fiction book (1994)
  • The Washington coastline just has this rugged beauty unlike anywhere else we've ever been.

  • Humpback whales will migrate past this coastline every year during winter.

  • The coastline of the United Kingdom stretches for over 11,000 miles.

Synonyms

coast
vscoastline
506 1.0

The land beside the sea or ocean

is the continuous outline of that land seen on a map
shore
vscoastline
441 1.0

Land at the edge of a sea or lake

is specifically the mapped outline of the sea edge not all shores
shoreline
vscoastline
48 2.7

The line where land meets water like a sea, lake or river

is the land edge seen as a continuous outline from above
seashore
vscoastline
14 1.0

Land at the edge of the sea with sand or rocks

is the line-like outline of that area viewed from above
strand
vscoastline
  • Archaic
5 8.4

The land next to the sea

is a technical outline or continuous line used in maps and views
seacoast
vscoastline
3 1.0

Land beside the sea or ocean

is viewed as one continuous outline rather than general land area
sea-coast
vscoastline
1 1.1

Land next to the sea or ocean

is the outline view of that edge not the whole coastal region
sea line
vscoastline
2.8

The line where land meets the sea

is the land edge seen as a continuous outline not merely a map mark

How Close

oceanside
1 3.0
shoreline
48 2.7
coastline
60 1.4
seaside
39 1.1
coastside
  • US
1 6.4
inland
31 3.8

Surface Forms

coastline singular
coastlines plural

Morphology

coastline = coast + line (transparent) = coast + line

The meaning follows directly from 'coast' + 'line' as the line formed by the coast; this is a straightforward compound readily understood by learners.

Etymology

Coastline is made of coast ('land beside the sea') and line ('a long line'). Coast comes from an old word meaning 'side' or 'rib', so think of the coastline as the land's edge or outline where land meets the sea, which is why coastline means the shape or line of a coast.