What is the meaning of Communis?

common, commonplace, ordinary, general, universal, shared, shared alike, of both sides, belonging to two or more together

of or for the community, public

democratic; representing the common sentiment

familiar, accessible, courteous

having both qualities of a subdivided category, such as a verb with both an active and a passive meaning, or a syllable being either long or short.

Source: wiktionary.org