To give tone or variety of tone to; vocalize.To bring into tone or tune; figuratively, to imbue with a particular tone of feeling.To speak or recite with the singing voice: as, to intone the litany.To utter a tone; utter a protracted sound.Specifically To use a monotone in pronouncing or repeating; speak or recite with the singing voice; chant.In music:To produce a tone, or a particular series of tones, like a scale, especially with the voice; sing or chant.In plainsong, to sing the intonation of a chant or melody.