publication vs index

publication and index both are nouns.

Word	Noun	Adjective	Verb	Adverb
publication	Yes	No	No	No
index	Yes	No	Yes	No

publication (noun)	index (noun)
the business of issuing printed matter for sale or distribution	the finger next to the thumb
the act of issuing printed materials	an alphabetical listing of names and topics along with page numbers where they are discussed
the communication of something to the public; making information generally known	a number or ratio (a value on a scale of measurement) derived from a series of observed facts; can reveal relative changes as a function of time
a copy of a printed work offered for distribution	a mathematical notation indicating the number of times a quantity is multiplied by itself
	a numerical scale used to compare variables with one another or with some reference number