personal identification number
PIN
PIN number

You must have a library card and pin number to use this service.

One of these phone numbers might be her PIN number.

You will need your library card and pin number to log into your account.

To sign up a new Gmail account it required your cellphone to send over its pin number.

The work card I'm not worried about, since it's layered with pin numbers and passwords for everything.

He turned on the power and waited to put in his PIN number.

Use the same PIN number for all of your accounts, if possible.

Used to be that the bad guys would pay about a hundred dollars for bank account information including the PIN number.

Our whole lives are now user names and PIN numbers!

He once created a television remote that could gain 'free' access channels that required pin numbers for them.