seaboard
Americannoun
-
the line where land and sea meet.
-
a region bordering a seacoast.
the Eastern seaboard.
adjective
noun
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.
"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
The US-EAST-1 Region refers to a group of data centers on the eastern seaboard of the U.S., centered around Northern Virginia.
From The Wall Street Journal • Oct. 20, 2025
But the Indians of the eastern seaboard institutionalized their liberty to an unusual extent—the Haudenosaunee especially, but many others, too.
From "1491" by Charles C. Mann
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.
