| Subject | English | Korean |
| math. | asymptotic efficiency | 점근효율 |
| math. | asymptotic relative efficiency | 점근적 상대효율 |
| math. | Bahadur efficiency | 바하두르 효율 |
| math. | Cramer-Rao efficiency | 크레머-라오효율성 |
| stat. | Cramér-Rao efficiency | 크레머-라오효율성 |
| comp., MS | efficiency bonus | 능률 보너스 (In computer games, an additional score or points given for efficient play) |
| math. | efficiency equivalence | 효율적 등가성 |
| math. | efficiency factor | 효율적 인자 |
| math. | efficiency index | 효율지수 |
| math. | local asymptotic efficiency | 국소점근효율성 |
| math. | Pitman efficiency | 피트만 효율 |
| stat. | power efficiency | 추정량상대효율 (of a test) |
| math. | power efficiency | 상대효율 |
| comp., MS | Power Efficiency Diagnostic | 전원 효율성 진단 (A Wizard-based interface for maximizing battery life based on user preferences) |
| math. | relative efficiency of an estimator | 추정량 상대효율 |
| math. | relative efficiency of a sample design | 상대효율 |