(idiomatic, chiefly US) The source of an education consisting of real-world experiences, especially adverse experiences.

(education) A school for children who have completed elementary school or grade school, but are not yet old enough for high school. In the US, it often includes grades 7 and 8, and possibly also 6 or 9.

(US) A television program broadcast in the mid- to late afternoon and directed toward adolescents.

(US) A television program broadcast in the mid- to late afternoon and directed toward adolescents, usually dealing with controversial or socially relevant issues.

A Bible program for children, hosted by many Christian churches in the summer.

(US) A high school or high school district that serves students from more than one elementary school district.

(education) An institution which provides secondary education, typically in grades 10, 11, and 12, and often also in grade 9.

Alternative form of tell tales out of school

Sillago bassensis, a coastal marine fish of the smelt-whiting family that inhabits the south and south-west coasts of Australia.

plural of school crossing attendant