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.
Its modular design also enables operators to install additional battery packs for extended operations or advanced sensor systems for deep-sea reconnaissance and seabed mapping. Bojan Stojkovski, Interesting Engineering, 10 May 2026 Researchers also detected sleeper sharks and deep-sea coral, Nester said in a video published on the university's YouTube. Julia Gomez, USA Today, 7 May 2026 In the house reef, there’s snorkelling and paddleboarding; guests preferring deep-sea action can request private yacht excursions or big-game fishing sessions. Condé Nast, Condé Nast Traveler, 28 Apr. 2026 Earlier this week, the National Oceanic and Atmospheric Administration (NOAA) revealed that the deep-sea find belonged to a giant deep-sea anemone, Relicanthus daphneae, and was part of the base that helped the underwater creature attach to rocks. Sam Gillette, PEOPLE, 24 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 May. 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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