Of or relating to human society and its modes of organization, Interacting with other people and living in communities, the science of all that relates to the social condition, the relations and institutions which are involved in man's existence and his well-being as a member of an organized community; sociology. It concerns itself with questions of the public health, education, labor, punishment of crime, reformation of criminals, and the like, noun_ A festive gathering to foster introductions, a party of people assembled to promote sociability and communal activity, US Short for social security number