Related Clues:

• Five-digit number on an envelope
• Friend of Beetle Bailey
• None
• Complete drip
• 12345, in Schenectady, N.Y.
• ___ code
• Japanese WW2 airplane
• You can't divide by it
• It's love in tennis
• Go speedily
• Five- or nine-digit number
• Goose egg, in sports
• Number line center
• Zero, to Nero
• Move swiftly