/liːɡəl ˈhɒlɪdeɪ/ – Phrase
Definition: ngày nghỉ chính thức, ngày nghỉ luật định.
A more thorough explanation: A legal holiday is a day designated by law on which government offices, schools, businesses, and other institutions are closed to observe a specific event or tradition.
Example: In the United States, Independence Day on July 4th is a legal holiday, meaning that government offices and many businesses are closed in observance of the holiday.