familiarity
//fəˌmɪliˈærɪti//
Noun
familiaritySingular
familiaritiesPlural
1
Close acquaintance with or knowledge of something.
Her familiarity with the local customs helped us avoid many misunderstandings.
2
Relaxed friendliness or intimacy between people.
There was an easy familiarity between the old friends.
3
Inappropriate or unwelcome informality or intimacy.
His familiarity with the new employee made everyone uncomfortable.