The state or quality of being fraternal or brotherly; brotherhood.
- A body of people associated for a common purpose or interest, such as a guild.
- A group of people joined by similar backgrounds, occupations, interests, or tastes: the fraternity of bird watchers.
- A chiefly social organization of men students at a college or university, usually designated by Greek letters.
- Roman Catholic Church A sodality.
- The quality or condition of being brothers; brotherliness.