lieutenant colonel lieutenant • lieutenant commander · · · Info · Definitions · Synonyms · Characters · · lieutenant colonel · · Text Common · · Latin · · Scripts 18 · · Length 7 · · Syllables Definitions · · · (noun) a commissioned officer in the United States Army or Air Force or Marines holding a rank above major and below colonel. Synonyms: lieutenant colonel, light colonel. · · Noun Definition 1 Synonyms · · · light colonel · · Synonym 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 n latin small letter n U+006E o latin small letter o U+006F t latin small letter t U+0074 u latin small letter u U+0075