What is the meaning of treble?

noun

• The pitch range of the highest female voice.
  • synonyms: soprano

verb

• Sing treble.
• Increase threefold.
  • usage: "Triple your income"
  • synonyms: triple

adjective

• Having or denoting a high range.
  • usage: "soprano voice"; "soprano sax"; "the boy still had a fine treble voice"; "the treble clef"
  • synonyms: soprano
• Three times as great or many.
  • usage: "a claim for treble (or triple) damages"; "a threefold increase"
  • synonyms: threefold, three-fold, triple
• Having three units or components or elements.
  • usage: "a ternary operation"; "a treble row of red beads"; "overcrowding made triple sessions necessary"; "triple time has three beats per measure"; "triplex windows"
  • synonyms: ternary, triple, triplex
• Having more than one decidedly dissimilar aspects or qualities."a double (or dual) role for an actor"; "the office of a clergyman is twofold; public preaching and private influence- R. W. Emerson; "every episode has its double and treble meaning-Frederick Harrison
  • synonyms: double, dual, twofold, two-fold, threefold, three-fold