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			| 1.
								absolutely necessary; vitally necessary essential tools and materials
 funds essential to the completion of the project
 2.
								basic and fundamental
 the essential feature
 3.
								of the greatest importance
 4.
								being or relating to or containing the essence of a plant etc
 essential oil
 5.
								defining rights and duties as opposed to giving the rules by which rights and duties are established
 6.
								absolutely required and not to be used up or sacrificed
 
 'essential' - used as a noun
 7.
								anything indispensable
 the essentials of the good life
 
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