essential

definition: defining rights and duties as opposed to giving the rules by which rights and duties are established

example:

speech part: adjective

synonyms: substantive

definition: basic and fundamental

example: the essential feature

speech part: adjective

synonyms:

definition: of the greatest importance

example:

speech part: adjective

synonyms: crucial all-important all important of the essence

definition: absolutely necessary

example:

speech part: adjective

synonyms: indispensable

definition: being or relating to or containing the essence of a plant etc

example: essential oil

speech part: adjective

synonyms:

definition: anything indispensable

example:

speech part: noun

synonyms: necessary requisite requirement necessity

essential is explained and pronounced