I usually alternate between pre-ev (where the 'ev' is the same sound as the last part of 'dev') and preev (rhymes with 'Steve').
Hey! I use preev.com to check Bitcoin price too! Been using it since I started using Bitcoin and I pronoun it as 'preview'.
Hmm.. only the owner could clear this thing up.. wonder what does preev mean..
If Preev is a word that has no meaning then it, along with Google, goes to show that what your site is called doesn't really matter. It's the service that you provide that really counts.