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Definition of sea

sea

/siː/
sea

Plural:seas
•
Adjective:marine
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sea Lexical Profile

sea Game Scores & Validity

• noun

1

The continuous expanse of salt water that covers most of the Earth's surface and surrounds its landmasses, or a large division of this water that is smaller than an ocean and partially enclosed by land.

Example

"The fishing boat sailed out to sea early in the morning before the tide turned."


2

A vast expanse or overwhelming quantity of something.

Example

"The speaker looked out over a sea of smiling faces in the crowded auditorium."


3

The state of the waves or swell of the ocean, especially with regard to their roughness or direction.

Example

"The crew struggled to secure the cargo on deck during the heavy seas."

Synonyms
View all synonyms for sea
Antonyms
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Word Nuance & Usage

Do not confuse 'sea' (a body of saltwater) with its exact homophone 'see' (to perceive with the eyes). In geography, a 'sea' is smaller than an 'ocean' and is usually partially enclosed by land, though in everyday speech the two terms are often used interchangeably.

• Rhymes for sea

Word Origin & Etymology

From Old English 'sæ', meaning a sheet of water, lake, or sea, derived from Proto-Germanic '*saiwiz', which is cognate with Dutch 'zee' and German 'See'.

Cite this Entry


Wordmom. (2026). Definition of Sea. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/sea
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