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barrier island

barrier island

11 4.6
A long narrow sandy island near the coast that protects the mainland from waves and storms
  • noun
  • /ˈbæriər ˈaɪlənd/
  • Specialized
translation icon : isla de barrera
  • The barrier island protects the mainland from strong storms and high waves.
  • coastal barrier island
  • barrier island about 10 miles

Examples

  • Both the Atlantic and Gulf coasts are bordered by a chain of roughly 300 barrier islands.

    Academic text (2000)
  • Residents and visitors on Atlantic County's barrier islands are asked to evacuate by 4 p.m. on Sunday, October 28.

    Blog text (28)
  • Beyond them lie the barrier islands, which at this distance I cannot see.

    Fiction book (1997)
  • We may not be able to reach our barrier islands for up to a week from now.

    Blog text (26)
  • Now the barrier island protecting Rhodes Point is losing about seven and a half feet a year.

    Academic text (1994)
  • Dauphin Island is a barrier island south of Mobile, Alabama.

    Academic text (2002)
  • As the term suggests, barrier islands serve as natural buffers between storms and the mainland.

    Academic text (2006)
  • In addition to the sea gates, barrier islands would help protect the city from flooding and storm surges.

    Blog text (23)
  • Chatham sits on Pleasant Bay, which is separated from the Atlantic Ocean by a barrier island known as North Beach.

    Academic text (1991)
  • Many of those newcomers flock to the barrier islands that ring Florida and other coastal states.

    Academic text (2006)

How Protective

seawall
  • Specialized
14 3.9
breakwater
  • Specialized
5 6.4
barrier island
  • Specialized
11 4.6
dune
69 2.7
sandbar
  • US
11 2.8

Surface Forms

Morphology

barrier + island

The meaning is directly compositional: an island that functions as a barrier protecting the coast, which can be inferred by combining 'barrier' (an obstacle that protects or blocks) with 'island' (land surrounded by water). Noun–noun compounds expressing function/role are common and cross-linguistically transparent, so a B1 learner who knows both constituents can reliably deduce the meaning.

Etymology

The noun barrier island shows the idea: a long sandy island that serves as a barrier in front of the coast, taking the waves and storms so the mainland stays safer. That's why it means 'an island that protects the shore'.