This is the 1128th most frequent Japanese word.
クリスマス
Christmas.
Here, 'クリスマス' is used as a noun to refer to the holiday celebrated on December 25th.
クリスマスは特別な日です。
Christmas is a special day.
In this sentence, 'クリスマス' modifies the noun '装飾' (decorations), forming a possessive phrase describing decorations related to Christmas.
クリスマスの装飾がきれいですね。
The Christmas decorations are beautiful, aren't they?
In this example, 'クリスマス' appears as the object of the verb '過ごします' (spend), indicating the specific event being spent with family.