noun
winter vacation; winter holidays
Refers to a formal winter break, such as school or company holidays. Often used in official contexts.
冬期休暇は12月25日から1月7日までです。
Winter vacation is from December 25th to January 7th.
More casual and common in everyday conversation. 冬期休暇 is more formal and often used in official announcements.
Compound of 冬期 (winter period) and 休暇 (vacation, leave).