intimacy vs involvement

intimacy and involvement both are nouns.

Word	Noun	Adjective	Verb	Adverb
intimacy	Yes	No	No	No
involvement	Yes	No	No	No

As nouns, intimacy and involvement are synonyms defined as:

intimacy and involvement: a usually secretive or illicit sexual relationship

Other synonyms of intimacy include affair, affaire, amour, liaison.

intimacy (noun)	involvement (noun)
close or warm friendship	the act of sharing in the activities of a group
a feeling of being intimate and belonging together	a sense of concern with and curiosity about someone or something
a usually secretive or illicit sexual relationship	a connection of inclusion or containment
	a usually secretive or illicit sexual relationship
	the condition of sharing in common with others (as fellows or partners etc.)