| Acronym | Definition |
|---|
| 4C➣Cut, Clarity, Color and Carat (how to evaluate a diamond) |
| 4C➣Command, Control, Communication and Computer (aircraft) |
| 4C➣Community Coordinated Care for Children, Inc. |
| 4C➣Correspondence/Counter (police incident code; New Zealand) |
| 4C➣Logistics/Staff Transport (police incident code; New Zealand) |
| 4C➣Continuously Controlled Chassis Concept (Volvo) |
| 4C➣Community Coordinated Child Care Association |