Related Clues:

• Sigh of relief
• 'Won-der-ful!'
• ''That's it!''
• Sound of relief
• Sound of contentment
• ''That's the spot!''
• 'That's nice!'
• Reaction to a back rub, maybe
• Excited exclamation
• 'How nice!'
• Sound heard during a massage
• Satisfied sound
• Sound of delight
• Delighted reaction
• 'Nice!'