convention vs normal

convention and normal both are nouns.

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

As nouns, convention and normal are synonyms defined as:

Other synonyms of convention include formula, pattern, rule.

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

convention (adjective)	normal (adjective)
	conforming with or constituting a norm or standard or level or type or social norm; not abnormal
	in accordance with scientific laws
	being approximately average or within certain limits in e.g. intelligence and development
	forming a right angle