"Is it ever hot!"

• Dog days' word
• ''That was a close one!''
• "So that's done!"
• "Glad that's done!"
• 'Close one!'
• Relieved cry
• Hot-day exclamation
• [What a relief!]

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
interjection EXAMPLES FROM OTHER ENTRIES ▪ Phew ! I am so glad it's Friday.

Wikipedia Word definitions in Wikipedia
Phew is the debut album by Phew , released in 1981 by record label Pass.