| Rank | Abbreviation | Meaning |
|---|
| ***** | CO-OP | Cognitive Orientation to Daily Occupational Performance
| |
| **** | CO-OP | Cooperative
| |
| **** | CO-OP | Cooperative Education Program
| |
| *** | CO-OP ADVERTISING. | An arrangement in which a supplier underwrites a portion of a travel agency's advertising expenses when such advertising features the supplier's products.
| |
| ** | CO-OP | Continuity of Operations Planning
| |
| * | CO-OP | Cooperation
| |
| * | CO-OP | Co-Operative
| |
| * | CO-OP | Cooperative Open-OSS Project
| |
| * | CO-OP | Co-operative Education
| |
| * | CO-OP | Cooperative Water Supply Operations
| |