Source : Webster's Revised Unabridged Dictionary (1913)

Communal \Com"mu*nal\ (? or ?), a. [Cf. F. communal.]
   Pertaining to a commune.

Source : WordNet®

communal
     adj 1: for or by a group rather than individuals; "dipping each his
            bread into a communal dish of stew"- Paul Roche; "a
            communal settlement in which all earnings and food
            were shared"; "a group effort"
     2: relating to a small administrative district or community;
        "communal elections in several European countries"