efficacy, efficiency

efficacy - /ˈɛf.ɪ.kə.si/

efficiency - /ɪˈfɪʃ.ən.si/

• The efficacy of the new drug was impressive, but its efficiency in mass production needs improvement.
• While efficiency focuses on saving time and resources, efficacy focuses on actual success or results.
• They questioned the efficacy of the vaccine, despite the high efficiency of its delivery system.
• The manager values efficiency, but the scientist is more concerned with the efficacy of the experiment.
• There's a difference between doing something quickly (efficiency) and doing it right (efficacy).
• The efficacy of the training was high, but the efficiency of the process could be better.
• His team is known for efficiency, yet the efficacy of their solutions is sometimes lacking.
• Automation can improve efficiency, but it doesn't guarantee efficacy in customer service.
• We measured the efficacy of each method and compared it to the efficiency of implementation.
• A good product must combine both efficacy in solving a problem and efficiency in operation.

• Efficacy - /ˈɛf.ɪ.kə.si/ - эффективность, действенность, сила.

efficacy имеет ударение на первый слогe: EFF-i-ca-cy

Рифмуется со словами accuracy, fallacy, fantasy.

• Efficiency - /ɪˈfɪʃ.ən.si/ - эффективность, производительность, оперативность, продуктивность.

efficiency имеет ударение на втором слогe: e-FISH-en-cy

Рифмуется со словами proficiency, deficiency, sufficiency.