vertical tail vertical surface • vertical union · · · Info · Definitions · Characters · · vertical tail · · Text Common · · Latin · · Scripts 13 · · Length 4 · · Syllables Definitions · · · (noun) the vertical airfoil in the tail assembly of an aircraft. Synonyms: vertical tail. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C r latin small letter r U+0072 t latin small letter t U+0074 v latin small letter v U+0076