/blu lɔː/ – Phrase
Definition: (Mỹ)1. luật thanh giáo (ở New England);
2. luật điều chỉnh chế độ ngày chủ nhật.
A more thorough explanation: Blue law refers to a law that prohibits certain activities, particularly commercial activities, on Sundays or other specified days of the week. These laws often have religious origins and are intended to promote religious observance or rest.
Example: Blue laws are regulations that prohibit certain activities on Sundays, such as the sale of alcohol or certain types of businesses being open.