1.
If something is ~ to you, you know nothing or very little about it, because you have not seen or experienced it before.
She grew many wonderful plants that were ~ to me...
I was alone in an ~ city.
? familiar
ADJ: oft ADJ to n
~ity
...problems which arise from the newness of the approach and its ~ity to prisoners.
? familiarity
N-UNCOUNT: oft with poss
2.
If you are ~ with something, it is ~ to you.
She speaks no Japanese and is ~ with Japanese culture.
ADJ: v-link ADJ with n
~ity
...her ~ity with the politics of the region.
N-UNCOUNT: N with n