Is Address Book the same as Contacts on a macbook pro running yosemite 10.10.3?

I am trying to figure out how to change the order of information contained on a contact's listing in my contacts. I looked on the internet, and it appears that apple now refers to the contacts as "address book". Is "address book" the same thing as "contacts", or is it a different application? Thanks! If anyone knows how to change the order of information on a contact's listing that would be helpful too!