Any system of government-run health care.

Following of social evolution.

A process that helps multiple people share information utilizing interpersonal and social networks to achieve any common goal.

A collection of humans or animals who share certain characteristics, interact with one another, accept expectations and obligations as members of the group, and share a common identity.

plural of social security number

The difference in the timing of a person's sleep period (measured as average midpoint of his/her sleep period) between workdays and rest days.

(politics, social policy) A set of governmental programs, entitlements, or benefits providing citizens and residents with a minimum level of financial protection, food, access to public infrastructure, or medical services.

(fascism) A collaborationist state that existed from 1943 to 1945.

(socialism) The theory and practice of attaining socialism without world revolution.

(politics, historical) The political programme of mild democratization and liberalization, established in socialist Czechoslovakia in 1968, that led to the Prague Spring.