Related Clues:

• Phrase of understanding
• Word on a Ouija board
• Triumphant shout
• 'Absolutely!'
• Fortuneteller's phrase
• Soothsayer's words
• ''You rang?''
• Nodder's words
• OK word?
• ''That's how it is, eh?''
• Positive reply
• 'O.K.'
• 'Prove it!'
• Thumbs-up
• ''To be sure!''