airing vs dissemination

airing and dissemination both are nouns.

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

As nouns, airing and dissemination are synonyms defined as:

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

Other synonyms of airing include public exposure, spreading.

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