| Subject | English | Japanese |
| telegr. | error detecting and feedback system | 誤り検出及びフィードバックシステム |
| comp. | n system error | システム・エラー |
| comp., MS | system error | システム エラー (A software condition that renders the operating system incapable of continuing to function normally. This type of error usually requires rebooting the system) |
| comp. | n system error | システムエラー |
| gen. | term used in error to refer to young men that were made to do forced labour in the ritsuryo system | 衛士 |