| Acronym | Meaning |
| C3 OR C? | Colorectal Cancer Condition - Command |
| NYRA | National Youth Rights Association -New York Racing Association (horse Racing) |
| FC | Fire Control -Funnel Cloud (METAR Code) |
| CJC | Canadian Jewish Congress |
| PEO | ?…??????… ???…‡??? ???†???‰?… (Greek For Pancyprian Federation Of Labour) - Philanthropic Educational Organization - PolyEthylene Oxide - Professional Employer Organization - Professional Engineers Ontario |
| DASD | (U.S.) Deputy Assistant Secretary Of Defense |
| KHR | Cambodian Riel (ISO 4217 Currency Code) |
| EMT | Emergency Medical Technician |
| 2.5G | Second-and-a-half-generation Mobile Telephone System |
| 3I | Investors In Industry (venture Capitalists) |