Related Clues:

• Abbr. to the right of a star
• Phone letters
• Zero letters
• Letters on a phone's "0" button
• Abbr. near the 0
• Telephone button abbr.
• 2 : ABC :: 0 : --
• Telephone dial abbr.
• Phone key letters
• Abbr. on many phones
• Phone co. employee
• Button next to a *
• Button below TUV
• Letters under TUV
• Abbr. on a keypad