carriage-free - chanty
- cesspool
- cestoid
- CET Central European Time
- cetacean
- cetaceous
- cevitamic acid
- cf carried forward
- cf. confer
- CFI Cost Freight and Insurance
- CFO Chief Financial Officer
- cfs cubic feet per second
- cg
- CGA Color/Graphics Adapter
- CGS centimetre-gramme-second
- ch
- Ch B Bachelor of Surgery
- ch. chapter
- cha-cha
- Chad
- chafe