Social Security number

[ soh-shuhl si-kyoor-i-tee nuhm-ber ]

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

Word History and Origins

Origin of Social Security number¹

First recorded in 1935–40

Example Sentences

Porter-Eley also pleaded guilty to opening bank accounts using other people’s Social Security numbers, thereby obtaining nearly $50,000 in worthless checks, according to the Justice Department.

From Los Angeles Times

Attorney’s Office declined to comment on the case or explain how Puente and Marquez are accused of gathering private personal identifying information such as Social Security numbers.

From Los Angeles Times

Though some work under the table, many others use false identities and Social Security numbers, contributing payroll taxes to benefits they will never be able to claim.

From Los Angeles Times

They aim to trick recipients into revealing sensitive information, like passwords or Social Security numbers.

From Salon

Californians can check their status online with their California driver’s license or ID number or the last four digits of their Social Security number here.

From Los Angeles Times