| Rank | Abbreviation | Meaning |
|---|
| ***** | NCI SEER | National Cancer Institute Surveillance, Epidemiology and End Results
| |
| **** | NCI | National Cybersecurity Initiative
| |
| *** | NCI | NHS (National Health Service) Centre for Involvement
| |
| ** | NCI | Nearest Collision Intercept
| |
| ** | NCI | Non-Cooperative Identification
| |
| * | NCI | NASA (National Aeronautics and Space Administration) Critical Information
| |
| * | NCI | Network Communication Interface
| |
| * | NCI | Navy Compartmented Information
| |
| * | NCI | New Community Instrument
| |
| * | NCI | Naval Combat Identification
| |
| * | NCI | Phasing Maneuver
| |
| * | NCI | Nuclear Capability Inspection
| |
| * | NCI | Network Computing Infrastructure
| |
| * | NCI | Naval Coast Inspector
| |
| * | NCI | Non-Credible Inconsequential
| |
| * | NCI | National Computational Infrastructure
| |
| * | NCI | NEC Course Indicator
| |