Related Clues:

• OK
• 'Let's do it!'
• Encouraging word
• 'Right'
• 'Undeniably'
• Thumbs-up response
• '___ Easy' (1977 hit)
• 'Amen!'
• Agreeable reply
• Direct-mail sticker
• 'That's a go'
• “Absolutely!”
• Truly
• Assent
• 'And how!'