Definitions from Wiktionary ( )

▸ adjective:  High in pitch.
▸ adjective:  (music) Pertaining to the highest singing voice or part in harmonized music; soprano.
▸ adjective:  (dated) Threefold, triple.
▸ adverb:  (dated) Trebly; triply.
▸ noun:  (music) The highest singing voice (especially as for a boy) or part in musical composition.
▸ noun:  (music) A person or instrument having a treble voice or pitch; a boy soprano.
▸ noun:  The highest tuned in a ring of bells.
▸ noun:  Any high-pitched or shrill voice or sound.
▸ noun:  (dated) A threefold quantity or number; something having three parts or having been tripled.
▸ noun:  (dated) A drink with three portions of alcohol; a triple
▸ noun:  (darts) Any of the narrow areas enclosed by the two central circles on a dartboard, worth three times the usual value of the segment.
▸ noun:  (sports) Three goals, victories, awards etc. in a given match or season.
▸ noun:  (soccer) A win in the top league, top national cup and top continental cup in the same season.
▸ verb:  (transitive, dated) To multiply by three; to make into three parts, layers, or thrice the amount.
▸ verb:  (intransitive, dated) To become multiplied by three or increased threefold.
▸ verb:  (intransitive) To make a shrill or high-pitched noise.
▸ verb:  (transitive) To utter in a treble key; to whine.
▸ noun:  Alternative form of tribble (“frame for drying paper”) [A horizontal frame with wires stretched across it for drying paper.]

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