essential Meaning in the Cambridge English Dictionary
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Meaning of “essential” in the English Dictionary

"essential" in British English

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essentialadjective

uk   us   /ɪˈsen.ʃəl/
B1 necessary or ​needed: Government ​support will be essential if the ​project is to ​succeed. There is essential ​work to be done before the ​building can be re-occupied. Water is essential for/toliving things. It is essential (that)ourpricesremaincompetitive. [+ to infinitive] For the ​experiment to be ​valid, it is essential torecord the ​dataaccurately.
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essentialnoun [C usually plural]

uk   us   /ɪˈsen.ʃəl/
a ​basic thing that you cannot ​live without: Because I ​live in a ​remotevillage, 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 ​prepare for a ​hurricane.
(Definition of essential from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"essential" in American English

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essentialadjective

 us   /ɪˈsen·ʃəl/
extremelyimportant or ​necessary: A ​knowledge of Spanish is essential for this ​job. Essential also ​meansbasic to the ​nature of someone or something: There is an essential ​difference between the two ​sisters in ​theirapproach to ​life.
essentially
adverb [not gradable]  us   /ɪˈsen·ʃə·li/
Essentially she’s saying that she is not ​interested in ​seeing you again.

essentialnoun [C usually pl]

 us   /ɪˈsen·ʃəl/
the ​basic things you need to ​live: The ​study estimated the ​cost of essentials for a ​family of four – ​itsfood, ​shelter, and ​clothingneeds. Essentials are also the ​basic or most ​importantpart of something: the essentials of ​chemistry
(Definition of essential from the Cambridge Academic Content Dictionary © Cambridge University Press)

"essential" in Business English

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essentialadjective

uk   us   /ɪˈsenʃəl/
very important or necessary: Computer ​literacy is becoming as essential as the ​ability to ​drive a ​car.an essential component/part of sth Selective ​expansion of our ​storebase is an essential ​component of our ​long-termplan.essential for sth Formulating new ​strategies is essential for preparing the ​corporation to ​meet and ​sustain future ​needs.it is essential (that) It is essential our ​prices remain ​competitive.it is essential to do sth It is essential to ​research and ​protect your ​patent.essential to sth Knowledge, ​skills, and ​creativity are essential to ​creating high-value ​products.

essentialnoun [C, usually plural]

uk   us   /ɪˈsenʃəl/
a basic thing that you cannot ​live or ​succeed without: This ​leaflet will give you the essentials of how to use the word ​processor. Goods that were once considered luxuries are now ​treated as essentials by many.
(Definition of essential from the Cambridge Business English Dictionary © Cambridge University Press)
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