master key master gunner • master leaf · · · Info · Definitions · Synonyms · Characters · · master key · · Text Common · · Latin · · Scripts 10 · · Length Definitions · · · (noun) key that secures entrance everywhere. Synonyms: passkey, passe-partout, master. · · Noun Definition 1 Synonyms · · · maestro · · Synonym 1 master · · Synonym 2 overlord · · Synonym 3 lord · · Synonym 4 victor · · Synonym 5 superior · · Synonym 6 headmaster · · Synonym 7 schoolmaster · · Synonym 8 master copy · · Synonym 9 original · · Synonym 10 captain · · Synonym 11 sea captain · · Synonym 12 skipper · · Synonym 13 professional · · Synonym 14 passkey · · Synonym 15 passe-partout · · Synonym 16 get the hang · · Synonym 17 overcome · · Synonym 18 get over · · Synonym 19 subdue · · Synonym 20 surmount · · Synonym 21 dominate · · Synonym 22 control · · Synonym 23 chief · · Synonym 24 main · · Synonym 25 primary · · Synonym 26 principal · · Synonym 27 Characters · · space U+0020 a latin small letter a U+0061 e latin small letter e U+0065 k latin small letter k U+006B m latin small letter m U+006D r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 y latin small letter y U+0079