Related Clues:

• Grow
• Word of approval
• 'Terrif!'
• "Nifty!"
• 'Pretty amazing!'
• Get bigger
• Crescendo followed by a decrescendo
• Mushroom
• 'Sweet!'
• Old-fashioned ''Super!''
• Bulge
• ''Awesome!''
• "Cool!"
• Fop
• ''Peachy keen!''