She has an 'appetite for' adventure. [=she likes adventure; she likes to do adventurous things]
That movie made me 'lose my appetite'. [=I no longer wanted to eat after seeing that movie]
Delicious smells from the kitchen 'whetted our appetites'. [=made us hungry]
(..) As though, I should leave this restaurant and steal a roll from a baker's shop. Well, you know, a freshly baked roll. I'm talking about love, and you're talking about your appetite. Easily confused. Now, do you know, um, Count Vronsky? Who? No. Why? He's your rival. (..)2012 Anna Karenina