seaboard
Americannoun
-
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.
For years following, back in the U.S., he traveled up and down the Eastern seaboard sketching or painting as many of the signers as were still to be found.
From The Wall Street Journal ● Jul. 4, 2026
Plumes of midges carrying the infection are thought to have travelled up the eastern Irish seaboard from England, where there have been almost 300 cases of the disease since July.
From BBC ● Mar. 26, 2026
The "Black Summer" bushfires raged across Australia's eastern seaboard from late 2019 to early 2020, razing swathes of forest, destroying thousands of homes and blanketing cities in noxious smoke.
From Barron's ● Jan. 7, 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
"After all,” he added defensively, "I bought you a washing machine for Montclair. I can’t have washing machines scattered all along the Atlantic seaboard, you know.”
From "Cheaper by the Dozen" by Frank B. Gilbreth Jr. and Ernestine Gilbreth Carey
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.
