seaboard
Americannoun
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the line where land and sea meet.
-
a region bordering a seacoast.
the Eastern seaboard.
adjective
noun
Other Word Forms
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.
Their study, published in the Journal of Vertebrate Paleontology in July 2020, noted that the name honored "his tireless work on the Late Cretaceous paleontology of the Southeast and Eastern Seaboard, USA."
From Science Daily • Apr. 15, 2026
Lose the gap, and Russian submarines have a clear run at the Eastern Seaboard.
From MarketWatch • Jan. 7, 2026
Historically there were about 20,000 North Atlantic right whales off the Eastern Seaboard.
From Los Angeles Times • Aug. 16, 2025
Much like the Eastern Seaboard in winter, a "warm" Mars likely means slightly warmer than freezing, lead author Amanda Steckel said.
From Salon • May 16, 2025
So I went over to the Seaboard Line’s hiring office.
From "The Autobiography of Malcolm X" by Alex Malcolm X;Hailey
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
