Synonyms of deep-seanext
: of, relating to, or occurring in the deeper parts of the sea
deep-sea fishing

Examples of deep-sea in a Sentence

chartered a boat to do some deep-sea fishing
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The drugs were seized at London Gateway, a deep-sea container port about 30 miles from London. Kerry Breen, CBS News, 11 Apr. 2026 Dawn choruses are getting shorter and the oceans echo with the din of transcontinental shipping and deep-sea mining. Literary Hub, 9 Apr. 2026 The effect on deep-sea organisms was even more dire. Jeffrey Marlow, New Yorker, 5 Apr. 2026 In human brains and lungs; in breast milk and semen; in alpine snow and deep-sea sediment; in corn plants and beer. Susanne Rust follow, Los Angeles Times, 5 Apr. 2026 See All Example Sentences for deep-sea

Word History

First Known Use

circa 1625, in the meaning defined above

Time Traveler
The first known use of deep-sea was circa 1625

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Cite this Entry

“Deep-sea.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/deep-sea. Accessed 20 Apr. 2026.

Kids Definition

deep-sea

adjective
ˌdēp-ˌsē
: of, relating to, or occurring in the deeper parts of the sea
deep-sea fishing
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