common vs standard

common and standard both are nouns.

Word	Noun	Adjective	Verb	Adverb
common	Yes	Yes	No	No
standard	Yes	Yes	No	No

common (noun)	standard (noun)
a piece of open land for recreational use in an urban area	any distinctive flag
	an upright pole or beam (especially one used as a support)
	the ideal in terms of which something can be judged
	a basis for comparison; a reference point against which other things can be evaluated
	the value behind the money in a monetary system
	a board measure = 1980 board feet

common (adjective)	standard (adjective)
having no special distinction or quality; widely known or commonly encountered; average or ordinary or usual	established or well-known or widely recognized as a model of authority or excellence
belonging to or participated in by a community as a whole; public	conforming to or constituting a standard of measurement or value; or of the usual or regularized or accepted kind
commonly encountered	conforming to the established language usage of educated native speakers
of low or inferior quality or value	commonly used or supplied
being or characteristic of or appropriate to everyday language	regularly and widely used or sold
of or associated with the great masses of people
to be expected; standard
common to or shared by two or more parties
lacking refinement or cultivation or taste