Related Clues:

• Express discontent
• ''Alas'' accompaniment
• Audible breath
• Breathe
• Sound of discomfort
• Mournful cry
• Audibly lament
• Sound of relief
• Bellyacher's utterance
• Groan's partner
• Bellyacher's sound
• Blue whale sound
• It's often heaved
• It might evoke pity
• Reaction to a bad pun