To utter words or inarticulate sounds in musical succession or with a tone that is musical in quality; chant: said of human beings.Specifically, to intone.To produce tuneful, musical, or rhythmical sounds: said of certain birds, beasts, and insects, and of various inanimate things: as, singing sands.To give out a continuous murmuring, humming, buzzing, or whistling sound.To cry out with pain or displeasure; squeal.To compose verse; relate or rehearse something in numbers or verse.To have the sensation of a continuous humming or ringing sound; ring.To be capable of being sung; be adaptable to a musical setting.Technically, an oscine passerine bird, whether it can sing or not; any member of the Oscines or Cantatores, many of which are songless.To utter in musical sounds or with musical alternations of pitch; chant.Specifically, to intone.To celebrate with singing, or with some form of sound resembling singing; proclaim musically or resonantly; chant.To frame, utter, or declaim in poetic form.To celebrate in numbers or verse; describe or glorify in poetry.To utter with enthusiasm; celebrate: as, to sing a person's praises on all occasions.To usher in or out, attend on, or accompany with singing: as, to sing the old year out and the new year in.To bring, send, force, or effect, as any end or change, by singing: as, to sing a child to sleep.Synonyms To carol, warble, chant, hymn.n. A singing; an entertainment of song.n. An abbreviation of singular.