All of the institutions, voluntary organizations and corporate bodies that are less than the state but greater than the family.

(US) A nine-digit number issued to citizens, permanent residents, and temporary (working) residents under section 205(c)(2) of the Social Security Act, codified as 42 U.S.C. § 405(c)(2). The number is issued to an individual by the Social Security Administration. Its primary purpose is to track individuals for taxation purposes. Abbreviated as SSN. In recent years the SSN has become a de facto national identification number.

A very thin film of soapy water that forms a sphere with an iridescent surface. / (figuratively) Anything attractive but unsubstantial.

Alternative form of soap opera

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.

(Canada) A nine-digit number issued by the government of Canada to citizens, permanent residents, and some categories of temporary residents, for official identification in the provision of government services and income taxation. Abbreviation: SIN.

Alternative spelling of sodium sulfate

(inorganic chemistry) The sodium salt of sulfuric acid, Na₂SO₄; it is a mild laxative (as Glauber's salt), and is used in the manufacture of paper, detergents and many other products.