Definition of common

• a piece of open land for recreational use in an urban area; "they went for a walk in the park"
• 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"
• having 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"