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Social Security number

nine-digit number issued to U.S. citizens, permanent residents, and temporary working residents

en-US/ˈsoʊʃəl sɪˈkjʊɹɪti ˈnʌmbɚ/
en-GB/ˈsəʊʃl sɪˈkjʊəɹɪtɪ ˈnʌmbə/

Categories:

national identification numberTaxpayer Identification Numberidentifier