
Efficiency – English Flashcard for Efficiency for IELTS
Efficiency Efficiency (noun) /ɪˈfɪʃ.ənt.si/ the quality of doing something appropriately without wasting energy, time or money - competence - efficacy: The main area of concern in this town is to develop new reliable methods for energy efficiency. Parts of Speech Adjective: efficient Adverb: efficiently Antonyms incompetence, inefficiency