Collocations for curfew - noun

strict
24-hour, dusk-to-dawn
night, night-time
7 p.m., etc.

declare, impose, order, place sth under
A five-day curfew was declared by the government.
The whole area has been placed under curfew.

enforce
lift
The strict curfew has now been lifted.

break, defy
Protesters defied the curfew and took to the streets.

have (AmE)
Why do you have to go home now if you don't have a curfew?

be late for, miss (both AmE)
I have to get back or I'll miss my curfew.

be in force
A dusk-to-dawn curfew was in force.

violation
law (AmE)

under curfew
The city is still under curfew.

curfew on
Many people are in favour/favor of a curfew on young people.