Typically, curfews order all people affected by them to remain indoors during the evening and nighttime hours. [2][3] Such an order is most often issued by public authorities, but may also be given by the owner of a house to those living in the household. Curfew is a rule or law that sets a time that certain people have to be off the streets. A town may set a curfew for teenagers, for example, although many parents impose a stricter curfew for their own kids. Curfew is a noun that means a regulation or rule requiring people to leave the streets or be at home at a certain hour. It can also refer to the signal, such as a bell, announcing the start of the curfew. See different sources, synonyms, translations and usage examples of curfew. Definition of curfew in the Definitions.net dictionary. Meaning of curfew. What does curfew mean? Information and translations of curfew in the most comprehensive dictionary definitions resource on the web.