The state of being extremely friendly; intimacy. / Undue intimacy; inappropriate informality, impertinence. / An instance of familiar behaviour.

The act, process or result of familiarizing.

(transitive, intransitive) To make or become familiar with something or someone.

Quality of being familiar.

plural of familiarism

(uncountable) The quality of being intimate or friendly. / (countable) A word or expression used in intimate or friendly contexts.

plural of familiar stranger

(social psychology) A stranger who is nonetheless recognized by another from regularly sharing a common physical space such as a street or bus stop, but with whom one does not interact.

In a familiar situation

The more an individual becomes acquainted with another person, and the more the individual knows about his or her shortcomings, the easier it becomess to dislike that person.