Related Clues:

• 'Let's do it!'
• Encouraging word
• 'Right'
• 'Undeniably'
• Nope's counterpart
• Thumbs-up response
• 'Amen!'
• Agreeable reply
• Direct-mail sticker
• 'That's a go'
• “Absolutely!”
• Assent
• Western agreement?
• 'I did it!'
• Affirmative