belonging to or used by a group of people rather than one single person
communal facilities/food/property公共设施／共享食品／公有财产
We each have a separate bedroom but share a communal kitchen.我们各有一间独立的卧室，但共享一个厨房。
公社制的
A communal society is one in which everyone lives and works together and property and possessions are shared rather than being owned by a particular person.
(IN A COMMUNITY)
（较大社会群体内）不同群体之间的
involving different social or religious groups within a community
Communal riots/disturbances have once again broken out between the two ethnic groups.两个种族之间再次爆发了群体骚乱。