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English word

efficiency

C1Frequent NGSL-3
UK /ɪˈfɪʃnsi/US /ɪˈfɪʃnsi/
noun

the quality of doing something well with no waste of time or money

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Ban Ki-moon's Harvard Kennedy School Graduation Address (2023) video example

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Secretary-General Moon also orchestrated reforms of the U.N.'s peacekeeping work, strengthened its humanitarian efforts, and introduced measures to increase transparency and efficiency.

Ban Ki-moon's Harvard Kennedy School Graduation Address (2023)

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More real video examples

But in order to get to orbit, this would require a substantial improvement in the mass efficiency and the engine efficiency and probably be a two-stage vehicle.

Elon Musk's 2003 Stanford University Entrepreneurial Thought Leaders LectureSentence 166 · Pro

We had to write our own labeling tools and then create auto-labeling software to amplify the efficiency of human labelers because it’s quite hard to label.

Elon Musk: A future worth getting excited about (TED 2022)Sentence 152 · Pro

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