publication vs printing

publication and printing both are nouns.

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

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

publication: the act of issuing printed materials
printing: the business of producing printed material for sale or distribution

As nouns, printing is a hyponym of publication; that is, printing is a word with a more specific, narrower meaning than publication:

publication (noun)	printing (noun)
the business of issuing printed matter for sale or distribution	the business of producing printed material for sale or distribution
the act of issuing printed materials	reproduction by applying ink to paper as for publication
the communication of something to the public; making information generally known	text handwritten in the style of printed matter
a copy of a printed work offered for distribution	all the copies of a work printed at one time