Related Clues:

• It's said when leaving university with a pass
• 'Arrivederci!'
• 'Farewell, Françoise'
• A valediction is something cast in gold
• Bye that's "bid"
• It may be bid sadly
• Something to take off with
• "Bye bye" somewhere
• Nice farewell for Polish leaving audiophiles
• Sicilian send-off
• Italian farewell found in the three longest Across answers
• Trendy hi
• Farewell regularly used in Deal when going back
• 'Fare thee well!'
• Tuscan 'Ta-ta!'