Related Clues:

• Sound like a siren
• It's often heaved
• It might evoke pity
• Beginning of of relief?
• Haunted house sound
• Bellow
• Expression of weariness
• Banshee's noise
• Ululate
• Charlie Brown utterance
• Weariness giveaway
• Exhale wistfully
• Sound of sorrow
• Resigned sound
• Banshee's cry