Thesaurus.com
Dictionary.com
Definitions

undersea

[uhn-der-see] / ˈʌn dərˌsi /


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Although China's ability to sever undersea communications cables, cyber attacks and interdicting maritime trade are the primary risk for Australia, "the direct strike threat is real and growing", the report said.

From Barron's • Jun. 14, 2026

His career has included Coast Guard search and rescue operations, maritime salvage missions, drug interdiction work, and research at the Johns Hopkins University Applied Physics Laboratory involving autonomous systems, space technologies, and undersea platforms.

From Science Daily • Jun. 11, 2026

Coastal desalination plants discharge ultra salty brine waste that can harm marine life, but the undersea pods release a less concentrated brine, which the company says is friendlier to the ecosystem.

From Los Angeles Times • Jun. 2, 2026

The UUV technology is the first signature project under Aukus's Pillar Two, where the partner countries work together on "advanced capabilities" in areas such as long-range hypersonic missiles, undersea robotics and AI.

From BBC • May 30, 2026

The road made for easier walking, so Roz followed it through the undersea landscape.

From "The Wild Robot Protects" by Peter Brown




Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "undersea" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com