Related Clues:

• Bye that's bid
• Word accompanying a wave
• Farewell, in 19-Across
• 'Peace'
• "Arrivederci!"
• Toulouse "Toodle-oo"
• Continental farewell
• "Till we meet again"
• "Farewell, mon ami"
• "Goodbye, cheri"
• Cherbourg ciao
• "Ta-ta"
• Foreign farewell
• 'Farewell, François!'
• 'Later, gator'