republication vs publication

republication and publication both are nouns.

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

As nouns, publication is a hypernym of republication; that is, publication is a word with a broader meaning than republication:

republication: the act of publishing again
publication: the business of issuing printed matter for sale or distribution

Other hypernyms of republication include publishing.

As nouns, publication is a hypernym of republication; that is, publication is a word with a broader meaning than republication:

republication: something that has been published again; a fresh publication (as of a literary work)
publication: a copy of a printed work offered for distribution

republication (noun)	publication (noun)
the act of publishing again	the business of issuing printed matter for sale or distribution
something that has been published again; a fresh publication (as of a literary work)	the act of issuing printed materials
	the communication of something to the public; making information generally known
	a copy of a printed work offered for distribution