Related Clues:

• Sound of a well-tuned engine
• Say coquettishly
• Aviary sound
• Be catty
• Aviary cry
• Cat sound
• Motor sound
• Kitten's comment
• Contented murmur
• Sound from a Burmese
• Cat or engine sound
• Bird's attempt at communication
• Run smoothly, as an engine
• Run well
• Songbird sound