Not a very clear meaning of anything between them!

Noun
1.A projection of the pelvis and upper thighbone on each side of the body in human beings and quadrupeds. (Nor joined at the hip uinless they couldn't be seperated!)
2.The fruit of a rose.

hip:
I would think you were struggling with the following, but one can never be sure!
For easier to understand terms of what hip is:

Adjective:
Following the latest fashion, esp. in popular music and clothes.
To be seen as part of the hip crowd. Like at a partcular hotel or restaurant.

Cooler than cool, the pinnacle of what is "it". Beyond all trends and conventional coolness.
Check out this hotel downtown instead, it is hip!

Interesting, my friend and I were invited to join the other couple after the Algonquin Hotel to another uptown Manhattan hip bar scene for a another drink to be introduced around their hip East Coast friends.

Hope that helps what you were trying to say!