Definition of seaboard in English:

seaboard

Line breaks: sea|board
Pronunciation: /ˈsiːbɔːd
 
/

noun

  • A region bordering the sea; the coastline: the eastern seaboard of the United States
    More example sentences
    • Thus, we start in the polar ice and tundra, move on to grasslands, thence to rain forests and marshes, then uplands, seaboards and maritime civilisations.
    • The eastern seaboards of North America, Australia, and Asia can be particularly vulnerable if this occurs.
    • Of course, the most important constituency to which the league appealed was the Irish-speaking population concentrated on the western and southern seaboards of the island.

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a powerful whirlpool in the sea