To sing (a song) cheerfully.
To sing carols; especially to sing Christmas carols in a group.
To praise or celebrate in song.
To sing in a joyful manner.
To participate in a carol (a round dance accompanied by singing).
A (usually traditional) religious or secular song sung at Christmastime.
A round dance accompanied by singing.
A ballad or song of joy.
To state solemnly, to chant.
To recite an incantation.