Island, Phoenix Islands, Kiribati, IATA code Capital Indoor Stadium, an indoor arena in Beijing, China Case Information Statement, a document used in US civil lawsuits cis (mathematics), a trigonometric mathematical function CIS Tower, a building in Manchester, England Common Intelligibility Scale, for speech intelligibility Community Innovation Survey, a series of surveys throughout the European Union Confederacy of Independent Systems, a fictional entity in the Star Wars universe Continuous Injection System, a fuel injection system developed by the Robert Bosch Group Copper indium selenide (CuInSe2), used in solar cells and semiconductors Corpus Inscriptionum Semiticarum, a corpus of Semitic inscriptions See also Cis (disambiguation)