Treble, a doublet of "triple" or "threefold" (from Latin triplus, "triple"; cf. "double" from duplus), is used in several contexts:
Music:
- As a term applied in music to the high or acute part of the musical system; see clef.
- A treble-cut filter, or low-pass filter, attenuates high frequencies while passing low frequencies.
- Treble response, the high frequency portion of an audio system's frequency response.
- The highest singing voice (properly applicable to a boy) or part in musical composition. See Boy soprano
- Treble Charger, a Canadian rock group.
- Treble in Trouble, a record by the band Ted Leo and the Pharmacists.
- Treble (girl group), a 3 piece girl group from the Netherlands.
- Treble is the name given in change ringing to the bell with the highest pitch.
- The bow-hand fiddle ornament which splits a single note into a triplet typically comprising three notes of the same pitch is called "trebling" by Irish traditional musicians.
Other:
- Treble, type of bet covering three selections.