Coptic Syllabification: (Cop·tic)Pronunciation: /ˈkäptik/Definition of Coptic noun the language of the Copts, which represents the final stage of ancient Egyptian. It now survives only as the liturgical language of the Coptic Church. adjective relating to the Copts or their language. Coptic in other Oxford dictionaries Definition of Coptic in the British & World English dictionary