grande école
/ˌɡrɒnd eɪˈkɒl/noun
In France: any of a number of elite institutions of higher education outside the university system, having a reputation for training many of France's most influential politicians, civil servants, and intellectuals; (in plural) a collective name for these institutions.
Origin
Early 20th century; earliest use found in Michigan Technic. From French grande école from grande, feminine of grand + école.