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Alternative forms[edit]


From earlier sea-bord, perhaps continuing (with change in meaning) Middle English see bord (porthole cover, seaward side), equivalent to sea +‎ board.


seaboard (plural seaboards)

  1. The area bordering the sea; a coastline; a sealine.
    • 1948, Carey McWilliams, North from Mexico / The Spanish-Speaking People of The United States, J. B. Lippincott Company, page 25,
      While De Anza was exploring the Bay of San Francisco, seeking a site for the presidio, the American colonists on the eastern seaboard, three thousand miles away, were celebrating the signing of the Declaration of Independence.

Derived terms[edit]