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English definition of “efficient”

efficient

adjective     /ɪˈfɪʃ.ənt/
B1 working or operating quickly and effectively in an organized way: The city's transport system is one of the most efficient in Europe . We need someone really efficient who can organize the office and make it run smoothly .Efficient and effective Grammar:Efficient or effective?Efficient and effective are adjectives. efficiently     /-li/ adverb B2 She runs the business very efficiently.Efficient and effective
(Definition of efficient adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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