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normal vs convention convention vs normal

normal and convention both are nouns.

normal is an adjective but convention is not an adjective.

As nouns, normal and convention are synonyms with the definitions:
  • something regarded as a normative example
Other synonyms of normal include pattern, rule, formula.
normal (noun) convention (noun)
something regarded as a normative example a large formal assembly
something regarded as a normative example
(diplomacy) an international agreement
orthodoxy as a consequence of being conventional
the act of convening
normal (adjective) convention (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