From Longman Dictionary of Contemporary EnglishCISCIS /ˌsiː aɪ ˈes/ noun SG (Commonwealth of Independent States) an association formed by countries that were formerly part of the Soviet Union
Examples from the Corpus
CIS• Heads of CIS Governments met in Moscow on Nov. 13 and signed 12 of the 18 draft documents.• At least half of Sun CIS Region employees will be drawn from the local computer industry.• These hand-outs are one reason why the sluggish reformers in the CIS have not yet issued their own currencies.• This meeting followed the ratification on Dec. 10 and 12 of the CIS declaration by the original signatories' Supreme Soviets.• We shall do our best to help them, but the west can not solve the problems of the CIS for it. 