dissemination vs airing

dissemination and airing both are nouns.

Word	Noun	Adjective	Verb	Adverb
dissemination	Yes	No	No	No
airing	Yes	No	No	No

As nouns, dissemination and airing are synonyms defined as:

dissemination and airing: the opening of a subject to widespread discussion and debate

Other synonyms of dissemination include public exposure, spreading.

dissemination (noun)	airing (noun)
the act of dispersing or diffusing something	the act of supplying fresh air and getting rid of foul air
the property of being diffused or dispersed	a short excursion (a walk or ride) in the open air
the opening of a subject to widespread discussion and debate	the opening of a subject to widespread discussion and debate