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Synonyms

seaboard

American  
[see-bawrd, -bohrd] / ˈsiˌbɔrd, -ˌboʊrd /

noun

  1. the line where land and sea meet.

  2. a region bordering a seacoast.

    the Eastern seaboard.


adjective

  1. bordering on or adjoining the sea.

seaboard British  
/ ˈsiːˌbɔːd /

noun

    1. land bordering on the sea; the seashore

    2. ( as modifier )

      seaboard towns

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • interseaboard adjective

Etymology

Origin of seaboard

1350–1400 for earlier sense “porthole cover”; 1480–90 in phrases at, on, to seaboard on the seaward side; 1815–25 seaboard for def. 1; Middle English seebord. See sea, starboard

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Early last week, Iran’s women’s soccer team stood on a field on Australia’s Gold Coast, a city on the country’s eastern seaboard, ready to play the first game in an international tournament.

From The Wall Street Journal • Mar. 12, 2026

"It's been a very big event for us as a country, really hitting almost our entire eastern seaboard of the North Island," said Minister for Emergency Management Mark Mitchell.

From BBC • Jan. 22, 2026

The "Black Summer" bushfires raged across Australia's eastern seaboard from late 2019 to early 2020, razing millions of hectares, destroying thousands of homes and blanketing cities in noxious smoke.

From Barron's • Jan. 9, 2026

They are frequently found in regions around the Mediterranean, as well as across continental Europe and along the Atlantic seaboard.

From Science Daily • Nov. 23, 2025

Even as it besieged Boston, the virus also spread down the eastern seaboard, laying waste as far as Georgia.

From "1491" by Charles C. Mann