1. (v. t.) To utter with a musical or prolonged note or tone; to chant; as, to intone the church service.

2. (v. i.) To utter a prolonged tone or a deep, protracted sound; to speak or recite in a measured, sonorous manner; to intonate.

anthem ballad carol chant chirp chirrup choir chorus croon descant do-re-mi hum hymn intonate lilt minstrel pipe psalm quaver roulade serenade shake sing sing in chorus sol-fa solmizate tremolo trill troll tweedle tweedledee twit twitter vocalize warble whistle yodel