| Subject | English | Japanese |
| comp., MS | mail relaying | メール リレー (A practice in which an attacker sends e-mail messages from another system's e-mail server in order to use its resources and/or make it appear that the messages originated from the other system) |
| gen. | protective relaying system | 保護継電方式 |
| gen. | n vs obsc relaying a message | 伝声 |