DCI
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DCI is a three-letter acronym with more than one meaning.
- Director of Central Intelligence
- In the United Kingdom, the police rank of Detective Chief Inspector
- Decompression illness, a term used for both decompression sickness and arterial gas embolisms: see diving disorders.
- Drum Corps International, the nonprofit organization governing modern junior drum and bugle corps.
- Duelists' Convocation International, the organization that runs official Magic: The Gathering tournaments
- In computing, DCI can stand for Display Control Interface