zest

noun
1
pleasure and enthusiasm
شوق, ذوق, نشاط, شور, اشتیاق
synonym appetite
2
the quality of being exciting, interesting and fun
شور, شوق, هیجان, نشاط, سرزندگی
The slight risk added zest to the experience.
The love affair added a little zest to her life.
3
the outer skin of an orange, a lemon, etc., when it is used in cooking
پوست لیمو, پوست پرتقال, پوست مرکبات
Add the zest of half a lemon.
compare peel, rind, skin