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essence

1 ENTRIES FOUND:
essence /ˈɛsn̩s/ noun
essence
/ˈɛsn̩s/
noun
Britannica Dictionary definition of ESSENCE
[singular] : the basic nature of a thing : the quality or qualities that make a thing what it is
[noncount] : a substance that contains in very strong form the special qualities (such as the taste and smell) of the thing from which it is taken

in essence

: at the most basic level

of the essence

: of the greatest importance