Definition of "Closeness" :

noun: close or warm friendship

noun: characterized by a lack of openness (especially about one's actions or purposes)

noun: extreme stinginess

noun: the spatial property resulting from a relatively small distance

"The sudden closeness of the dock sent him into action."

noun: the quality of being close and poorly ventilated

noun: a feeling of being intimate and belonging together

"Their closeness grew as the night wore on."