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.
They are often caught accidentally in deep-sea fisheries, and their slow reproductive rate makes population recovery difficult. Samantha Agate, Miami Herald, 31 Mar. 2026 This stunningly beautiful scientific film features footage of the elusive giant squid in its natural habitat, and the earliest images of deep-sea bioluminescence. Matthew Carey, Deadline, 31 Mar. 2026 Each offers insight into the taxonomic gaps that persist in deep-sea classification. Hanna Wickes, Fort Worth Star-Telegram, 31 Mar. 2026 For those surrounded by ocean ecosystems that are home to some of the country’s most active marine research communities, the science emerging from this species touches on deep-sea fisheries, conservation and the biology of aging itself. Samantha Agate, Charlotte Observer, 31 Mar. 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 1 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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