cli clews • cliack · · · Info · Definitions · Synonyms · Characters · · cli · · Text Latin · · Script 3 · · Length 1 · · Syllables Definitions · · · (noun) a user interface in which you type commands instead of choosing them from a menu or selecting an icon. Synonyms: command line interface, CLI. · · Noun Definition 1 Synonyms · · · command line interface · · Synonym 1 Characters · · c latin small letter c U+0063 i latin small letter i U+0069 l latin small letter l U+006C