familiarity vs closeness

familiarity and closeness both are nouns.

Word	Noun	Adjective	Verb	Adverb
familiarity	Yes	No	No	No
closeness	Yes	No	No	No

As nouns, familiarity and closeness are synonyms defined as:

Other synonyms of familiarity include intimacy.

familiarity (noun)	closeness (noun)
an act of undue intimacy	the spatial property resulting from a relatively small distance
usualness by virtue of being familiar or well known	characterized by a lack of openness (especially about one's actions or purposes)
close or warm friendship	the quality of being close and poorly ventilated
a casual manner	close or warm friendship
personal knowledge or information about someone or something	extreme stinginess
	a feeling of being intimate and belonging together