Christmas holiday/vacation taken around Christmas. The length and dates vary by school, company, or individual plans.
今年のクリスマス休暇は実家に帰って両親と過ごす予定だ。
This Christmas holiday I plan to go back home and spend it with my parents.
大学はクリスマス休暇で二週間ほど授業が休みになる。
The university's Christmas holiday means classes are off for about two weeks.
クリスマス休暇に海外旅行する人が増えている。
More people are traveling abroad during the Christmas holiday.