- LASTNAME
- Application-blank datum
- It's often first in a bibliography
- Biden, Warren, or Sanders, e.g.
- Madonna hasn't used one in years
- Patronymic
- Sports uniform feature, often
- It's often first on an application
- Leno or Romano
- It's something Rihanna rarely goes by
- It may be given up at the altar
- Burns or Allen
- Application entry
- Job application line
- Common sorting basis
- Altar sacrifice, at times?
- Line on an application
- Sorting factor in some directories
- Uniform feature, often
- Primary sort, at times
- Blackstone or Houdini
- Smith or Jones
- Cognomen
- Direction on an application form
- 1-Across or 55-Across, e.g.
- Washington or Irving
- Parents pass it on
- It may be changed at the altar
- Part alphabetized in a telephone directory
- Sorting criterion
- What phone books are alphabetized by
- Adkins, for Adele
- First survey datum, often
- Bush, Lieberman, or Mikulski
- It may follow Tom, Dick or Harry
- Salk or Sabin, e.g.
- Siblings may share one
- Marriage might change it
- It's shared by family members
