zest

US /zest/
UK /zest/
"zest" picture
1.

great enthusiasm and energy

:
She approached life with a remarkable zest.
His performance lacked zest and energy.
2.

the outer colored part of the peel of a citrus fruit, used as flavoring

:
Add a teaspoon of lemon zest to the cake batter.
Orange zest can enhance the flavor of many dishes.
1.

scrape off the outer colored part of the peel of (a citrus fruit) for flavoring

:
She carefully zested the lime for the cocktail.
Remember to wash the orange before you zest it.