the act of imitating the behavior of some situation or some process by means of something suitably analogous (especially for the purpose of study or personnel training)
(computer science) the technique of representing the real world by a computer program; "a simulation should imitate the internal processes and not merely the results of the thing being simulated"
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"
relating to a small administrative district or community; "communal elections in several European countries"