social security number (English, noun)
expansion: social security number (plural social security numbers)
Senses:
glosses: A nine-digit number issued to citizens, permanent residents, and temporary (working) residents by the Social Security Administration under section 205(c)(2) of the Social Security Act, codified as 42 U.S.C. § 405(c)(2), introduced primarily to track people for taxation purposes, and in recent years serving as a de facto national identification number.
tags: US
glosses: A corresponding number in other countries.
Forms:
form: social security numbers
tags: plural
form: Social Security number
tags: alternative
form: social-security number
tags: alternative