Sound at a massage parlor

AHH

What you might sigh when tension melts away under skilled hands.

This clue plays on the relaxed, satisfied sound people often make during a massage—think of someone sighing "ahh" in relief as tension melts away. The answer isn’t a literal noise you’d hear in a spa but a short, onomatopoeic representation of that contented exhale. It’s a lighthearted way to clue a simple, universal reaction to comfort.