Word.ws English Dictionary

SSN

SSN is the initialism of social security number.

SSN is the abbreviation of nuclear-powered attack submarine.

Meaning of social security number

Noun

social security number (plural social security numbers)

  1. (US) 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.

Forms of SSN

pluralSSNs

Questions about SSN

What is SSN the initialism of?
SSN is the initialism of social security number.

Words near SSN in the dictionary

  1. SSLR
  2. SSLRs
  3. SSM
  4. SSME
  5. SSMs
  6. SSN
  7. SSND
  8. SSNDs
  9. SSNRI
  10. SSNRIs
  11. SSNs

Source and license

Adapted from Wiktionary: SSN (page history and authors); social security number (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Cite this entry: “SSN.” Word.ws, https://word.ws/ssn. Based on Wiktionary, CC BY-SA 4.0.