The adj communal has 2 senses (first 2 from tagged texts)
1. (2) communal -- (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. (1) communal -- (relating to a small administrative district or community; "communal elections in several European countries")