(witchcraft) An attendant spirit, often in animal or demon form. / (obsolete) A member of one's family or household. / A member of a pope's or bishop's household. / (obsolete) A close friend.

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

The act, process or result of familiarizing.

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.