conventional vs convention

conventional is not a noun while convention is a noun.

Word	Noun	Adjective	Verb	Adverb
conventional	No	Yes	No	No
convention	Yes	No	No	No

conventional (noun)	convention (noun)
	the act of convening
	orthodoxy as a consequence of being conventional
	something regarded as a normative example
	(diplomacy) an international agreement
	a large formal assembly

conventional (adjective)	convention (adjective)
following accepted customs and proprieties
unimaginative and conformist
(weapons) using energy for propulsion or destruction that is not nuclear energy
rigidly formal or bound by convention
represented in simplified or symbolic form
conforming with accepted standards
in accord with or being a tradition or practice accepted from the past