seaboard

noun

sea·​board ˈsē-ˌbȯrd 

: seacoast

also : the country bordering a seacoast

seaboard adjective

Examples of seaboard in a Sentence

He lives on the eastern seaboard.

Recent Examples on the Web

Cadillac Mountain At 1,530 feet, Cadillac Mountain is the highest point on the eastern seaboard of the United States and one of Acadia’s most iconic destinations. — Lauren Dana Ellman, Travel + Leisure, 5 July 2026

In the 1700s, when West Africans were shackled and shipped to the South Carolina–Georgia seaboard, some were forced to work in rice paddies, in cotton fields, and on indigo plantations, where the moist climate resembled that of their homelands. — Jeanne Malle, Air Mail, 4 July 2026

These competing priorities continue to collide within the PJM regional grid, which covers a vast swath of the Eastern seaboard from North Carolina through Pennsylvania, extending westward all the way into Illinois. — David Blackmon, Forbes.com, 23 June 2026

Here in the United States, El Niños typically result in wetter, warmer winters for the West Coast and a milder hurricane season for the Atlantic seaboard. — Doyle Rice, USA Today, 13 June 2026

Word History

First Known Use

1613, in the meaning defined above

Rhymes for seaboard

• abhorred
• aboard
• accord
• adored
• afford
• award
• baseboard
• billboard
• blackboard
• boxboard
• breadboard
• broadsword

Kids Definition

seaboard

noun

sea·​board ˈsē-ˌbō(ə)rd 

-ˌbȯ(ə)rd

: seacoast

also : the country bordering a seacoast

seaboard adjective