Longman Dictionary of Contemporary English
Wiktionary
n. Any of various academic sessions held in the summer at schools or universities when the usual students are away; either for supplementary or remedial study or as part of distance learning.
WordNet
n. an academic session during the summer; usually for remedial or supplementary study
Wikipedia
Summer School is a 1987 comedy film directed by Carl Reiner. It stars Mark Harmon as a high school gym teacher who is forced to teach a remedial English class during the summer. It co-stars Kirstie Alley and Courtney Thorne-Smith. The original music score was composed by Danny Elfman.
Summer school (or summer university) is a school, or a program generally sponsored by a school or a school district, or provided by a private company, that provides lessons and activities during the summer vacation. Participation in summer schools has been shown to have substantial beneficial effects on educational progress.
Summer School is an independent horror film created by Minnesota-based production company Random Creatureface Films. Summer School, having spent the first two years after its release showing at regional and national film festivals, is currently only available on the official website, but distributor Osiris Entertainment has scheduled a worldwide release in stores and several rental chains starting in April 2009.
Usage examples of "summer school".
The highlight of the set was a routine about taking a summer school class in philosophy, one of his earliest bits to weave in a spiritual message.
I had signed up for summer school both to add to my education (since I had given up the idea of college) and to fill that aching emptiness caused by Father and Tom (and Mr Smith) being away at war.
Following summer school I got my first taste of teaching by assisting at an art camp for gifted students at Bucknell University.
She therefore persuaded her parents to allow her to attend Harvard Summer School and sublet a flat in North - Cambridge.
Instead, I took an extra class each semester and went to summer school for two years, in the time when I would have been sweating under the August sun, hitting the tackling dummies, if things had happened differently.