English Reference

Word

coastline

Phoneticscoast·line, stress on the first syllable

US/ˈkoʊstˌɫaɪn/

UK/kˈəʊslaɪn/

Countable noun Geography

Definition

n. the line where the land meets the sea. It marks the edge of the continent or island.

n. the boundary line separating land from the sea or ocean.

Examples

“We walked along the coastline for an hour.”

“The new hotel sits right on the coastline, offering guests direct access to the beach.”

“Rising sea levels threaten to reshape the coastline, forcing communities to build higher walls and retreat from vulnerable shorelines.”

Examples

simple

“We walked along the coastline for an hour.”

contextual

“The new hotel sits right on the coastline, offering guests direct access to the beach.”

complex

“Rising sea levels threaten to reshape the coastline, forcing communities to build higher walls and retreat from vulnerable shorelines.”

Real-World Examples

“The same stretch of coastline was struck by a similarly powerful earthquake in December 1992, when the quake and the tsunami it triggered killed more than 2,500 people on Flores.”
Al Jazeera 15 Aug 2026
“Back at the end of June, the two teenagers had gone to the beach on Venezuela's Caribbean coastline.”
BBC News 14 Aug 2026

Etymology

From coast + line.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

NOUN

ADJECTIVE

Domain

Geography

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Frequent
Level
B2 · Upper Intermediate
Updated

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English Reference