efficiency

/ɪˈfɪʃənsi/
noun
  1. The ability to do something without wasting time, energy, or resources.
    • The new software improved the team's efficiency by automating repetitive tasks.
    • To save money, the factory focused on increasing energy efficiency.
    • She admired the efficiency of the solar panels, which powered the entire house.
  2. The ratio of useful work performed to the total energy or resources used, often expressed as a percentage.
    • Engineers calculated the efficiency of the heating system to find ways to reduce fuel costs.
    • A higher efficiency rating means the appliance uses less electricity for the same output.
    • The engine's efficiency dropped to 40% after years of wear and tear.
What does "efficiency" mean? | whatsthatwordmean | whatsthatwordmean