A "school play" refers to a theatrical performance put on by students at a school. It involves them acting out a story on stage, often with costumes and props, to entertain an audience. Full definition
In high school I played in the youth bible study band. (livecareer.com)
Making a point to be there for school plays, tennis matches, and other important moments shows your child that you love them. (heightsfamilycounseling.com)
It brings the number of school playing field sell - offs approved by the coalition to 22. (conservativehome.blogs.com)