A school which is held at night, especially for those who cannot attend a day-school.(noun)
The Century Dictionary (Public Domain)
Use "night-school" in a sentence
"She was taking night-school English lessons and going to lectures and classes, and she could feel her mind opening up, her dreams opening up, her future opening up."
"The atmosphere of purposeful endeavor was like what you might find at a night-school business class of aspiring franchisees."
"They run into a group of trainee monster hunters who are more inclined to eliminate eligible night-school students than educate them."