Simple Definition of seaboard

from our Learner's Dictionary

seaboard

noun

ˈsiːˌboɚd

plural seaboards

: the part of a country that is along or near the sea

He lives on the eastern seaboard.

a seaboard city

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“Seaboard.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/seaboard. Accessed 20 Jun. 2026.

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