Stau

Stau may refer to one of the following:
 * In particle physics, stau is a slepton which is the hypothetical superpartner of a tau lepton
 * An obsolete letter Stigma in the Greek alphabet
 * In German, stau is a word meaning 'traffic jam'
 * One common abbreviation of St. Augustine High School (disambiguation)
 * In the fictional Vulcan language, stau is the verb 'to kill'
 * An alternate name for the Horpa language