(noun)
The abbreviation for Secure, Contain, Protect or Secure, Conceal, Protect. (either one works.) A fictional foundation that contains strange anomalies throughout the world in an attempt to conceal them from the public in case they may cause any danger.
Person 1: Hey, check out what I found in the mail.
*Person 1 shows Person 2 an acceptance letter from the SCP Foundation.*
Person 2: You got hired at the SCP Foundation?!
A community writingproject in the format of a numbered collection of top secret documents describing anomalies that must be "secured, contained, and protected" from the public, including the procedures by which the anomalies are secured, contained, and protected.