deep-sea

adjective

ˈdēp-ˈsē 

: of, relating to, or occurring in the deeper parts of the sea

deep-sea fishing

Synonyms of deep-sea

• oceanic

Examples of deep-sea in a Sentence

chartered a boat to do some deep-sea fishing

Recent Examples on the Web

The submersible imploded on its 88th dive, killing all five on board who were on a deep-sea voyage to the Titanic wreckage on June 18, 2023. — Ayesha Ali, ABC News, 17 June 2026

Host organisms may also depend on endosymbionts for fixing carbon and atmospheric nitrogen to survive under extreme conditions such as in deep-sea hydrothermal vents. — Encyclopedia Britannica, 18 June 2026

Excellent deep-sea fishing and the allure of new luxury vacation community called Cinnamon Shore are just two reasons to consider this Texas coastal town. — Tara Massouleh McCay, Southern Living, 21 June 2026

And lastly, abyssine (according to the brand) is a polymer derived from deep-sea organisms that eliminates and protects from pollution, environmental stressors, and general damage. — Tamim Alnuweiri, InStyle, 15 June 2026

Word History

First Known Use

circa 1625, in the meaning defined above

Rhymes for deep-sea

• agree
• allee
• banshee
• beastly
• bibi
• bowsprit
• carefree
• cerci
• chablis
• cowpea
• crappie
• crappy

Kids Definition

deep-sea

adjective

ˌdēp-ˌsē

: of, relating to, or occurring in the deeper parts of the sea

deep-sea fishing