Sigh sound

• "I'm exhausted!"
• Sigh of relief
• Phil's number one cut - that was close!
• "I'm glad THAT's over!"
• "Damn, that was close!"
• 'Close one!'
• "Man, that was close!"
• That's a relief!
• Cry of relief

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
vocalic gesture expressing weariness, etc., attested from c.1600.