Treble meaning : The highest singing voice (especially as for a boy) or part in musical composition. A person or instrument having a treble voice or pitch; a boy soprano. The highest tuned in a ring of bells. Any high-pitched or shrill voice or sound. A threefold quantity or number; something having three parts or having been tripled. A drink with three portions of alcohol. Any of the narrow areas enclosed by the two central circles on a dartboard, worth three times the usual value of the segment. Three goals, victories, awards etc. in a given match or season. To multiply by three; to make into three parts, layers, or thrice the amount. To become multiplied by three or increased threefold. To make a shrill or high-pitched noise. To utter in a treble key; to whine. Pertaining to the highest singing voice or part in harmonized music; soprano. High in pitch; shrill. Threefold, triple. Trebly; triply.