CCU

noun6

1. •
   Initialism of cardiac/coronary care unit.
2. •
   Initialism of critical care unit.
3. •
   Initialism of concurrent user.
4. •
   Initialism of camera control unit.
5. •
   Initialism of carbon capture and utilization.
6. •
   Initialism of credit card usage, namely, the percentage of one's available credit line amounts that one has currently already borrowed against (for example, if one has ten thousand available credit and has already borrowed four thousand, then one's CCU value is 40%).