| SLOPE | San Luis Outdoor Painters for the Environment 
| Others |
| SLOPE | Second Language Oral Production Exam
| Others |
| SLOPE | Second Language Oral Proficiency Evaluation
| Others |
| SLOPE | Smashed Lost Obliterated Or Pulverised Eventually
| Others |
| SLOPE | Smashed Lost Obliterated Or Pulverized Eventually
| Others |
| SLOPE | Smashed, Lost, Or Pulverized Eventually
| Others |
| SLOPE | Sorted L One Penalized Estimation
| Others |
| SLOPE | Student Loans Over Projected Earnings
| Others |