territorial waters territorial reserve • territorian · · · Info · Definitions · Antonyms · Characters · · territorial waters · · Text Common · · Latin · · Scripts 18 · · Length 6 · · Syllables Definitions · · · (noun) the waters surrounding a nation and its territories over which that nation exercises sovereign jurisdiction. Synonyms: territorial waters. · · Noun Definition 1 Antonyms · · · high sea · · Antonym 0 international waters · · Antonym 1 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 w latin small letter w U+0077