(~s)
1.
Zest is a feeling of pleasure and enthusiasm.
He has a ~ for life and a quick intellect.
N-UNCOUNT: also a N, oft N for n
2.
Zest is a quality in an activity or situation which you find exciting.
Live interviews add ~ and a touch of the unexpected to any piece of research.
N-UNCOUNT
3.
The ~ of a lemon, orange, or lime is the outer skin when it is used to give flavour to something such as a cake or a drink.
Mix the rest of the olive oil with the ~ and juice of the lemon...
N-UNCOUNT: also N in pl, usu N of n, n N