| English | eng-000 |
| having a thorough knowledge of | |
| Deutsch | deu-000 | Beschlagenheit |
| Deutsch | deu-000 | Vertrautheit |
| Deutsch | deu-000 | genaue Kenntnis |
| Deutsch | deu-000 | gründliches Wissen |
| English | eng-000 | being familiar with |
| English | eng-000 | being well-informed about |
| 日本語 | jpn-000 | 熟知 |