Related Clues:

• Pound sound
• Watchdog's warning
• Boxer's warning
• Audible warning
• Translated, it means 'stay away'
• Warning sound
• Cur's sound
• Worrisome sound for a mail carrier
• Dog's warning
• Boxer's threat
• 14-Down's warning
• Spot announcement?
• Sound that might deter a burglar
• Doberman's warning
• Greeting from Spike