Related Clues:

• Affirmative vote
• Magic 8-Ball answer
• A silent bid
• Cole Porter's '___ in Love'
• Conclusion of Descartes
• Thinking person's conclusion?
• Certainly
• 'Absolutely'
• Answer to theme query, "Who's in there?"
• House call
• Head motion
• 'Sure'
• 'That's right!'
• ''By all means!''
• Signal