| Abbreviation | Definition |
|---|---|
| OTJT | On The Job Training |
| OTR | Old Time Radio |
| OTS | One To Six |
| OVT | Optical Video Technician |
| OW | Old Wench |
| OWA | Occupational Work Adjustment |
| OWD | Open Water Diver |
| OWE | Occupational Worker Experience |
| OWL | Orientation Workshop Leader |
| OWQ | Official Work Qualifications |
| OYL | Online Youth Leader |
| P | Performance |
| P | Probationary |
| P | Professional |
| P | Professor |
| P | Promoter |
| P.A. | Production Assistant |
| P.ADM. | Professional Administrator |
| P.Eng | Project Engineer |
| PA | Per Annum |