smoking gun smoking duck • smoking jacket · · · Info · Definitions · Characters · · smoking gun · · Text Common · · Latin · · Scripts 11 · · Length 3 · · Syllables Definitions · · · (noun) indisputable evidence (especially of a crime). Synonyms: smoking gun. · · Noun Definition 1 Characters · · space U+0020 g latin small letter g U+0067 i latin small letter i U+0069 k latin small letter k U+006B m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F s latin small letter s U+0073 u latin small letter u U+0075