territorial waters

plural noun

: the waters under the sovereign jurisdiction of a nation or state including both marginal sea and inland waters

Examples of territorial waters in a Sentence

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.
Both straits are designated by Japan as international waterways, where Japan claims its territorial waters extend less than the standard 13.8 miles from its coastlines. Ryan Chan, MSNBC Newsweek, 11 June 2025 Another vessel operated by the group, the Conscience, was hit by two drones just outside Maltese territorial waters in early May. Danilo Arnone, USA Today, 3 June 2025 According to a map provided by the Japan Joint Staff, the Chinese naval ships were tracked outside Japan's territorial waters—which extend up to 13.8 miles from the coastline—but have remained within Japan's 230-mile-wide exclusive economic zone since Monday. Ryan Chan, MSNBC Newsweek, 28 May 2025 The United Nations Convention on the Law of the Sea defines a coastal state's territorial waters as extending up to 12 nautical miles (13.8 miles) from its coastline, while its exclusive economic zone extends a further 200 nautical miles (230 miles) beyond that. Ryan Chan, MSNBC Newsweek, 19 May 2025 See All Example Sentences for territorial waters

Word History

First Known Use

1841, in the meaning defined above

Time Traveler
The first known use of territorial waters was in 1841

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Cite this Entry

“Territorial waters.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/territorial%20waters. Accessed 19 Jun. 2025.

Legal Definition

territorial waters

noun plural
territorial wa·​ters
: the waters under the sovereign jurisdiction of a nation or state including both marginal sea and inland waters

More from Merriam-Webster on territorial waters

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