treble

nouns

the pitch range of the highest female voice

verbs

sing treble
is a type of (narrower)
produce tones with the voice
"She was singing while she was cooking"; "My brother sings very well"
increase threefold
"Triple your income!"

adjectives

having or denoting a high range
"soprano voice"; "soprano sax"; "the boy still had a fine treble voice"; "the treble clef"
three times as great or many
"a claim for treble (or triple) damages"; "a threefold increase"
having three units or components or elements
"a ternary operation"; "a treble row of red beads"; "overcrowding made triple sessions necessary"; "triple time has three beats per measure"; "triplex windows"
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