Adjective common has 9 senses
  1. common - belonging to or participated in by a community as a whole; public; "for the common good"; "common lands are set aside for use by all members of a community"
    individual, idiosyncratic, individualist, individualistic, one-on-one, man-to-man, respective, several, various, separate, single, singular, particular
  2. common - of no special distinction or quality; widely known or commonly encountered; average or ordinary or usual; "the common man"; "a common sailor"; "the common cold"; "a common nuisance"; "followed common procedure"; "it is common knowledge that she lives alone"; "the common housefly"; "a common brand of soap"
    uncommon, especial, exceptional, particular, special, rare, red carpet, red-carpet, unusual, unwonted
  3. common, mutual - common to or shared by two or more parties; "a common friend"; "the mutual interests of management and labor"
    Antonym: unshared (indirect, via shared)
  4. common, usual - commonly encountered; "a common (or familiar) complaint"; "the usual greeting"
    Antonyms: strange, unusual (indirect, via familiar)
  5. common, vernacular, vulgar - being or characteristic of or appropriate to everyday language; "common parlance"; "a vernacular term"; "vernacular speakers"; "the vulgar tongue of the masses"; "the technical and vulgar names for an animal species"
    Antonym: formal (indirect, via informal)
  6. common, plebeian, vulgar, unwashed - of or associated with the great masses of people; "the common people in those days suffered greatly"; "behavior that branded him as common"; "his square plebeian nose"; "a vulgar and objectionable person"; "the unwashed masses"
    Antonym: noble (indirect, via lowborn)
  7. coarse, common - of low or inferior quality or value; "of what coarse metal ye are molded"- Shakespeare; "produced...the common cloths used by the poorer population"
    Antonym: superior (indirect, via inferior)
  8. coarse, common, rough-cut, uncouth, vulgar - lacking refinement or cultivation or taste; "he had coarse manners but a first-rate mind"; "behavior that branded him as common"; "an untutored and uncouth human being"; "an uncouth soldier--a real tough guy"; "appealing to the vulgar taste for violence"; "the vulgar display of the newly rich"
    Antonym: refined (indirect, via unrefined)
  9. common - to be expected; standard; "common decency"
    extraordinary (indirect, via ordinary)
,Noun commoner has 1 sense
  1. commoner, common man, common person - a person who holds no title
    --1 is a kind of person, individual, someone, somebody, mortal, human, soul
    --1 has particulars:
     bourgeois, burgher; cipher, cypher, nobody, nonentity; everyman; John Doe, Joe Blow, Joe Bloggs, man in the street; layman, layperson; plebeian, pleb; proletarian, prole, worker; rustic