Belonging equally to or shared equally by two or more; joint: common interests. Of or relating to the community as a whole; public: for the common good. See Usage Note at mutual. Widespread; prevalent. Occurring frequently or habitually; usual. Most widely known; ordinary: the common housefly. Having no special designation, status, or rank: a common sailor. Not distinguished by superior or noteworthy characteristics; average: the common spectator. Of no special quality; standard: common procedure. Of mediocre or inferior quality; second-rate: common cloth. Unrefined or coarse in manner; vulgar: behavior that branded him as common. Grammar Either masculine or feminine in gender. Grammar Representing one or all of the members of a class; not designating a unique entity. The common people; commonalty. The social class composed of commoners. The parliamentary representatives of this class. The House of Commons. Often used in the plural. A tract of land, usually in a centrally located spot, belonging to or used by a community as a whole: a band concert on the village common. The legal right of a person to use the lands or waters of another, as for fishing. A building or hall for dining, typically at a university or college. Common stock. Ecclesiastical A service used for a particular class of festivals. in common Equally with or by all.