Related Clues:

• 'Ciao!'
• 'So long!'
• 'See ya'
• 'Cheerio!'
• Opposite of 61-Across
• 'Ta-ta!'
• Cousin of 'ciao'
• Gallic goodbye
• Word of parting
• Polite goodbye
• 'Later, gator!'
• 'So long, Pierre!'
• Word on the way out?
• Flowery 'ta-ta'
• It may be bid