| Acronym | Definition |
|---|
| CEY➣Communities Empowering Youth (various locations) |
| CEY➣Constant Exploitation Yield (commercial fishing) |
| CEY➣Cornell Entrepreneur of the Year (est. 1984; Cornell University; Ithaca, NY) |
| CEY➣Conversion Electron Yield |
| CEY➣Cercle d'Escrime de Yerres (French: Yerres Fencing Circle; Yerres, France) |
| CEY➣Corvette Early Years (Canada) |
| CEY➣Curves of Effective Yield (physical chemistry) |