Meanings
plural social insurance numbers
- CanadaA nine-digit number issued by the government of Canada to citizens, permanent residents, and some categories of temporary residents, for official identification in the provision of government services and income taxation.
Before you start the process of establishing a credit rating in Canada, you need to have a Social Insurance Number, which you'll need for every credit application you complete (see Chapter 5 on how to obtain one).
2008, Brian D. Wruk, The American in Canada, Revised, Real-Life Tax and Financial Insights Into Moving to and Living in Canada - Updated and Revised Second EditionSynonyms: SIN
Synonyms & antonyms
nounA nine-digit number issued by the government of Canada to citizens, permanent residents, and some categories of temporary residents, for official identification in the provision of government services and income taxation.
Translations
French numéro d'assurance sociale, NAS
- numéro d'assurance socialeTranslations
- NASTranslations
Polish numer ubezpieczenia społecznego
- numer ubezpieczenia społecznegoTranslations
Cite this entry
social insurance number. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/social%20insurance%20number
“social insurance number.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/social%20insurance%20number. Accessed November 5, 2026.
WatkinsX Dictionary, s.v. “social insurance number,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/social%20insurance%20number.
Source: social insurance number on Wiktionary, CC BY-SA 4.0.