the noun that completes an event or celebration phrase, especially holiday or festive occasions (e.g., the final word of a "Christmas ___", "birthday ___", or "National Flower ___" phrase).
The noun or head word that completes a compound naming a holiday-related event or item, mostly Christmas, as in "Christmas weekend", "Christmas feast", "Christmas wedding", "birthday bash" and "Christmas Truce". It sits right after the holiday or celebration word, including in non-English text such as German "Weihnachtszeit" and Japanese Christmas phrases.
