Related Clues:

• Nine-digit sequence
• Pizzazz
• Kind of code or gun
• Kind of code
• G.I. mailing address
• Pep
• Nil
• G.I. mail center
• Destination of some mail: Abbr.
• Place for a GIâs mail
• Mil. mail drop
• Type of code
• Letters on letters to GIs
• Spice
• None at all