Related Clues:

• OK word?
• Equivalent of a pitcher's nod to the catcher
• Positive reply
• 'O.K.'
• Thumbs-up
• ''To be sure!''
• 'Sounds good to me'
• Thumbs-up vote
• Cry of accomplishment
• 'Exactly!'
• ''That's it!''
• Good answer
• Triumphant cry
• What a nod may mean
• Twenty questions answer