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English definition of “essential”

essential

noun [C usually plural]     /ɪˈsen.ʃəl/
a basic thing that you cannot live without: Because I live in a remote village, I regard my car as an essential. When we go on holiday, we only take the bare essentials. This leaflet will give you the essentials of how to use the word processor.Important and essential thingsInformation and messages
(Definition of essential noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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