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ef·fi·cien·cy

efficiency

 
 
pronunciation:
ih fI shn si
features:
Word Combinations (noun), Word Parts
part of speech: noun
inflections: efficiencies
definition 1: the state of being efficient.
One advantage of the newer cars is their efficiency with respect to fuel consumption.
antonyms:
inefficiency
similar words:
expedition
definition 2: the quick, accurate performance of a task, or the ability to so perform.
I admire the efficiency of the cashiers at the grocery store.He used to spend a lot of time completing each task perfectly, but now he performs with greater efficiency.
antonyms:
inefficiency
similar words:
expedition
definition 3: of a machine or other physical system, the ratio of energy produced to energy supplied, usu. expressed as a percentage.
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