1. plural of seaboard; coastal regions or areas bordering the sea

Examples

• The eastern and western seaboards of the United States have very different climates.
• Major cities are often located along the seaboards for trade advantages.
• The Atlantic and Pacific seaboards offer diverse marine ecosystems.
• Hurricane warnings were issued for both seaboards during the storm season.
• Many immigrants first arrived at the eastern seaboards before moving inland.
• The country’s seaboards are vital for international shipping and commerce.