| Subject | English | Korean |
| comp., MS | O/R Designer | O/R 디자이너 (A tool that provides a visual design surface for creating LINQ to SQL entity classes and associations (relationships) based on objects in a database. The Object Relational Designer also provides functionality to map stored procedures and functions to System.Data.Linq.DataContext methods for returning data and manipulating entity classes) |
| math. | R-estimator | R 추정량 |
| math. | R-process | R-과정 |
| comp., MS | R-squared value | R-제곱 값 (A number from 0 to 1 that reveals how closely the estimated values for the trendline correspond to your actual data. A trendline is most reliable when its R-squared value is at or near 1) |
| math. | R-technique | R 기법 |