Related Clues:

• Hi! - bye!
• Italian salutation
• Cheery send-off
• "Bye now!"
• Spies connected with ring for so long
• 'Don't be a stranger'
• 'Bye for now'
• "Bye-bye," to a Brit
• "Farewell, Luigi!"
• "So long, signore"
• "It's been real, dahling"
• So long returning at first and at last
• Universal greeting
• ''Bye now!''
• "Later," in London