central vs centrality

central and centrality both are nouns.

Word	Noun	Adjective	Verb	Adverb
central	Yes	Yes	No	No
centrality	Yes	No	No	No

central (noun)	centrality (noun)
a workplace that serves as a telecommunications facility where lines from telephones can be connected together to permit communication	the property of being central

central (adjective)	centrality (adjective)
in or near a center or constituting a center; the inner area
serving as an essential component