Editing CSS (disambiguation) (section)

==Schools and education==
*[[Centennial Secondary School (disambiguation)]]
*''[[Certificat de Sécurité Sauvetage]]'', the former name of ''Certificat de formation à la sécurité'', the French national degree required to be flight attendant in France
*[[Chase Secondary School]], British Columbia, Canada
*[[Clementi Secondary School]], Hong Kong SAR, China
*[[College of Social Studies]], at Wesleyan University, Middletown, Connecticut, USA
*[[College of St. Scholastica]], Duluth, Minnesota, USA
*[[Colorado Springs School]], Colorado Springs, CO, USA
*[[Columbia Secondary School]], New York, NY, USA
*[[Commonwealth Secondary School]], Jurong East, Singapore
*[[Courtice Secondary School]], Courtice, Canada
*[[Crockett State School]], juvenile correctional facility in Crockett, Texas, USA
*[[CSS Profile]], College Scholarship Service Profile, a U.S. student aid application form