CI Full Form - CI refers to “Circle Inspector” of Police. Know more details like rank of CI, general duties of CI etc. CI is a common abbreviation that can stand for many different words or phrases, such as Continuous Improvement, Caller ID, Counterintelligence, or Chile. See the full list of CI meanings and definitions on The Free Dictionary website. In summary, CI is an abbreviation that can stand for various terms depending on the context, and its interpretation can vary across different fields such as technology, business, education, geography, government, law and other specialized areas. What is the full form of CI? - Circle Inspector - Circle Inspector (CI) is a police officer in charge of a police circle consisting of more than one p