What does COMMON mean?

adjective

1. belonging to or participated in by a community as a whole; public“for the common good”
2. having no special distinction or quality; widely known or commonly encountered; average or ordinary or usual“the common man”
3. common to or shared by two or more parties“a common friend”
4. commonly encountered“a common (or familiar) complaint”
5. being or characteristic of or appropriate to everyday language“common parlance”
6. of or associated with the great masses of people“the common people in those days suffered greatly”
7. of low or inferior quality or value“of what coarse metal ye are molded”
8. lacking refinement or cultivation or taste“he had coarse manners but a first-rate mind”