normal vs standard standard vs normal

normal and standard both are nouns.

normal and standard both are adjectives.

normal (noun) standard (noun)
something regarded as a normative example a basis for comparison; a reference point against which other things can be evaluated
the ideal in terms of which something can be judged
a board measure = 1980 board feet
the value behind the money in a monetary system
an upright pole or beam (especially one used as a support)
any distinctive flag
normal (adjective) standard (adjective)
conforming with or constituting a norm or standard or level or type or social norm; not abnormal conforming to or constituting a standard of measurement or value; or of the usual or regularized or accepted kind
in accordance with scientific laws established or well-known or widely recognized as a model of authority or excellence
being approximately average or within certain limits in e.g. intelligence and development conforming to the established language usage of educated native speakers
forming a right angle commonly used or supplied
regularly and widely used or sold