Clue: Tuba's opening sound?

Answer: OOM

Length: 3

---

Similar Clues:

• Opening sound? (AHH with 3 letters)
• Violin sound opening (FHOLE with 5 letters)
• Half a tuba sound (e.g. OOM with 3 letters)
• Part of a tuba's sound (e.g. OOM with 3 letters)
• ___-pah-pah (tuba sound) (OOM with 3 letters)
• Start of a tuba sound (OOM with 3 letters)
• Part of a tuba sound (OOM with 3 letters)
• Tuba sound (e.g. OOMPAH with 6 letters)
• Oom-___ (tuba sounds) (e.g. PAH with 3 letters)
• Oom-___ (tuba sound) (PAH with 3 letters)