crucial

US /ˈkruʃəl/

UK /'kru:ʃl/

B1
adj.AdjectiveExtremely important or necessary
The most crucial point of the business plan is referred to on the last page
adj.AdjectiveOf great importance to the success of something.
Trust is a crucial element in any successful relationship.
adj.AdjectiveDifficult and very important
The next few weeks are going to be crucial.

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