| Abbreviation | Definition |
|---|---|
| CIC | Content Indicator Code |
| CIC | Coverglass Interconnect Cell |
| CID | Customization, Installation, and Distribution |
| CIM | Computer Integrated Manufacturing |
| CIMC | Colorado Instructional Materials Center |
| CIMS | Ceramic Integrated Measuring System |
| CIP | Chemicals In Products |
| CIPA | Camera & Imaging Products Association |
| CIPDC | China Information Product Design Committee |
| CIS | Continuous Ink System |
| CJ | Cool Joint |
| CJP | Complete Joint Penetration |
| CK | Classy Kid Products |
| CKR | Clinker |
| CKS | Certain Kind of Special |
| CKS | Christmas Kitchen Santa |
| CKVB | Challis Kamloops Volcanic Belt |
| CL | Contact Lens |
| CL | Custom Ladder |
| CL | Cutter Location |