cryptograph Syllabification: (cryp·to·graph)Pronunciation: /ˈkriptəˌgraf/Definition of cryptograph noun 1a coded message:you must solve the cryptograph to find the correct coordinates 2a device for encoding or decoding messages:in 1867 he unveiled his cryptograph, which used two clock-like hands, connected by gearscryptograph in other Oxford dictionaries Definition of cryptograph in the British & World English dictionary