From Longman Dictionary of Contemporary EnglishChristmas carolˌChristmas ˈcarol noun [countable] APMa Christian song that people sing at Christmas
Examples from the Corpus
Christmas carol• The repertoire was as follows, in chronological order of being devised: A Christmas Carol.• The offices are so old-fashioned that one was used as Scrooge's office in a recent film version of A Christmas Carol.• Made up the words and music to a Christmas carol? 