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

Name, social security number, blood type, and religious preference.

From The Daily Beast

Item 20 “Social security benefits”… If I could remember my Social Security number.

From The Daily Beast

I can never remember my social Security number but my high school locker combination was 15-24-36.

From The Daily Beast

New loans can be taken, but without IRS and Social Security number verifications, [they] will not be able to proceed to closing.

From The Daily Beast

In many cases, they are actively using false paperwork, such as a fake Social Security number, to gain employment.

From The Daily Beast

No social security number, no driver's license, no home or business address.

From Project Gutenberg

It was one of those facts that always appears on your records, like your social security number.

From Project Gutenberg

"Lee Harvey Oswald," and the various data on this card—the social security number and the phone number.

From Project Gutenberg

Now, do you recognize the handwriting in which that phone number and the social security number are?

From Project Gutenberg

The child must have a social security number by the age of two.

From Project Gutenberg