efficiency
UK: ɪˈfɪʃənsi | US: ɪˈfɪʃənsi
n. the ability to accomplish a task with minimal waste of time, energy, or resources
n. the ratio of useful output to total input in a system
The word "efficiency" originates from the Latin efficientia, derived from efficere ("to accomplish, produce"), which combines ex- ("out") + facere ("to do, make"). The morpheme effic preserves the core idea of "doing" or "producing," while -iency (via Latin -entia) denotes a state or quality. Over time, the term evolved to emphasize achieving results with optimal resource use, reflecting its modern technical and everyday meanings.
The new software improved the company's operational efficiency.
Solar panels convert sunlight into energy with high efficiency.
She praised the team for their efficiency in meeting the deadline.
Fuel efficiency is a key factor for environmentally conscious drivers.
The factory upgraded its machinery to maximize production efficiency.