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Definition of seaboard
seaboard
/ˈsiːˌbɔːrd/
sea · board
Plural:seaboards
seaboard Lexical Profile
CEFR
B2
Grade
8
Tier
2
Usage
Top 10k
Syllables
2
seaboard Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
A coastal region or stretch of land bordering an ocean or sea.
Example
"Heavy winter storms frequently batter the towns along the eastern seaboard."
Synonyms
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View all antonyms for seaboard• adjective
1
Bordering on or situated near the sea; coastal.
Example
"The seaboard provinces depend heavily on maritime trade and commercial fishing."
Synonyms
View all synonyms for seaboard Antonyms
View all antonyms for seaboard• Rhymes for seaboard
Word Origin & Etymology
Formed in the late 16th century as a compound of 'sea' and 'board' in its older sense of 'border, side, or coast' (related to the nautical use of 'board' for a ship's side).
Cite this Entry
Wordmom. (2026). Definition of Seaboard. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/seaboard