| Subject | English | Turkish |
| comp., MS | A/R | AH (A group of posting accounts that show the amounts customers owe for services or sales made on credit) |
| fire. | load-bearing criterion "R" | yangına dayanma kriteri "R" (İlgili yangına direnç (54) deneyi süresince bir malzeme veya yapının belirli işlemleri sürdürebilme yeteneğinin değerlendirildiği kriter. • TS EN 13943 Natalya Rovina) |
| comp., MS | O/R Designer | O/R Tasarımcısı (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) |
| comp., MS | R&B | Rythm and Blues (One of the music genres that appears under Genre classification in Windows Media Player library. Based on ID3 standard tagging format for MP3 audio files. ID3v1 genre ID 14) |
| math. | R-estimator | R-tahminleyicisi |
| math. | R-process | R-prosesi |
| math. | R-technique | R-tekniği |