common vs public

common and public both are nouns.

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

common (noun)	public (noun)
a piece of open land for recreational use in an urban area	people in general considered as a whole
	a body of people sharing some common interest

common (adjective)	public (adjective)
having no special distinction or quality; widely known or commonly encountered; average or ordinary or usual	not private; open to or concerning the people as a whole
belonging to or participated in by a community as a whole; public	affecting the people or community as a whole
commonly encountered
of low or inferior quality or value
being or characteristic of or appropriate to everyday language
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