English Explanatory Dictionary

social security number

English dictionary entry

Meanings

noun
  1. A nine-digit number issued by the Social Security Administration to citizens, permanent residents, and certain temporary workers, primarily to track people for taxation purposes, and in recent years serving as a de facto national identification number.
  2. A corresponding number in other countries.
noun
  1. Alternative letter-case form of social security number.

Word forms

social security number social security numbers social-security number

Related words

SSN social social safety net SSA
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