| Subject | English | Korean |
| math. | asymptotically efficient estimator | 점근적 유효추정량 |
| math. | efficient estimator | 효율추정량 |
| comp., MS | Efficient File Storage | 효율적 파일 저장 (A storage method in which a file is split into pieces that are stored and updated separately, and streamed together when a user requests the file) |
| comp., MS | Efficient File Transfer | 효율적 파일 전송 (A feature that breaks a file up into granular chunks so that during re-open and re-save scenarios only the differences between client and server are sent over the network) |
| math. | most efficient estimator | 최대효율추정량 |