zone of interior zone line • zone phenomenon · · · Info · Definitions · Characters · · zone of interior · · Text Common · · Latin · · Scripts 16 · · Length 5 · · Syllables Definitions · · · (noun) the part of the theater of war not included in the theater of operations. Synonyms: zone of interior. · · Noun Definition 1 Characters · · space U+0020 e latin small letter e U+0065 f latin small letter f U+0066 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 z latin small letter z U+007A