Meanings
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1
noun
great enthusiasm and energy
She tackled the project with zest.
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2
noun
the outer colored part of the peel of citrus fruits, used as flavoring
Add a teaspoon of lemon zest to the recipe.
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3
noun
an exciting or stimulating quality
Travel adds a certain zest to life.
Thesaurus
Etymology
From Old French zeste / French zeste (orange or lemon peel used as seasoning); modern English zest means both enthusiasm and the flavoring obtained from citrus peel.