phonebook

• phone book

From phone +‎ book.

phonebook (plural phonebooks)

1. A directory of all the phone numbers used in a district.
   • 2007 June 13, Virginia Heffernan, “Doing the People's Business, in All Its Somnolent Glory”, in New York Times‎^[1]:

     One even proposes, in a workaday monotone, that the first hundred people in any Idaho phonebook could do just as well as the legislators at making decisions in the capital.

2. (by extension, computing) A large lookup table.
   • 2007 July 9, John Markoff, “Fixing Typos by Web Users, Without Raising Hackles”, in New York Times‎^[2]:

     He does this by using the Domain Name System, or DNS, which is the phonebook for the Internet.

• white pages
• yellow pages