From Longman Dictionary of Contemporary Englishnight schoolˈnight school noun [uncountable] SEclasses that take place in the evening for people who work during the day
Examples from the Corpus
night school• For ahead of them lies several more hours of hard study and concentration, either at home or at night school.• I guess my first proper date was an invitation to a finals night school ball.• Kobayashi earned his degree in night school.• Our night school was different for them, though, and they showed us that in a variety of ways.• At the time, Colavitti decided to stick with aerospace, and the night school degree seemed just a momentary departure.• I might go to night school or something.• Considering a career shift, Colavitti went to night school, earning a degree in psychotherapy.• It would give Mr Brown a surprise when he went to night school. 