Social Security number

American  

[soh-shuhl si-kyoor-i-tee nuhm-ber] / ˈsoʊ ʃəl sɪˈkyʊər ɪ ti ˌnʌm bər /

noun

1. a unique nine-digit number assigned to each U.S. citizen and sometimes also given to resident non-citizens, used by the government for Social Security taxes, program eligibility, etc. SSN

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Etymology

Origin of Social Security number

First recorded in 1935–40

Example Sentences

This personal information includes names, Social Security numbers, physical descriptions, addresses and any other identifying information, the faculty union said.

From Los Angeles Times

Typically, he said, “confidential” information governed by a protective order refers to sensitive data like trade secrets or personal information, such as Social Security numbers and health records.

From Los Angeles Times

Also see: ‘We never want to think our children would strip us of all our money’: Is it safe to give my kids my Social Security number?

From MarketWatch

‘We never want to think our children would strip us of all our money’: Is it safe to give my kids my Social Security number?

From MarketWatch

When do you tell your children your Social Security number?

From MarketWatch