Submitted by György Chityil ... on Fri, 01/19/2018 - 18:32 Hierarchy: AbbreviationDescription: {{Canada}} Social insurance number, an identification number issued by the government of Canada.Ngram Text: SINSource: WiktionaryIssue: 0Wiktionary tag: CanadaNgram Count: 1Wikokit WikiText ID: 147102