CAROL OPENING is a term used to describe the beginning of a Christmas carol. The three crossword solutions for this term are ADESTE (6 letters), HARK (4 letters), and OCOME (5 letters). Adeste is a Latin phrase meaning 'Come ye faithful', HARK is an imperative verb meaning 'LISTEN' or 'HEARKEN', and Ocome is a shortened version of the Latin phrase 'Adeste Fideles' meaning 'O come, all ye faithful'. Together, these three words form the opening of many Christmas carols.