- the line where land and sea meet.
- a region bordering a seacoast: the Eastern seaboard.
- bordering on or adjoining the sea.
Origin of seaboard
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for seaboard
In the years before the American Revolution, few colonists on the Atlantic seaboard joined militias or even knew how to use arms.The Militarization of America
William R. Polk
December 5, 2009
Tens of thousands line up to pay their respects as Hurricane Danny moves slowly up the Atlantic seaboard and darkens the sky.My Martha's Vineyard Close Encounter
Patricia J. Williams
August 29, 2009
Down here on the seaboard I think most people do appreciate it.Latin America and the United States
After this achievement he advanced from the seaboard and encamped in Leuctra on Thespian territory.Hellenica
He is the war-lord who sends his battalions of Atlantic rollers to the assault of our seaboard.The Mirror of the Sea
It is more American, but less cosmopolitan than the seaboard.The Frontier in American History
Frederick Jackson Turner
White apparitions were seen on the Atlantic seaboard near Savannah.The White Invaders
Raymond King Cummings
- land bordering on the sea; the seashore
- (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
Word Origin and History for seaboard
Online Etymology Dictionary, © 2010 Douglas Harper