1. [N. Amer] A social club for male undergraduates
   "He joined a fraternity in his sophomore year";
   - frat [N. Amer, informal]
    
2. People engaged in a particular occupation
   "the medical fraternity";
   - brotherhood, sodality
    
3. Friendship and mutual support within a group of people
   "There was a strong sense of fraternity among the firefighters"

Derived forms: fraternities

Type of: class, club, gild, guild, lodge, order, social class, social club, society, socio-economic class, stratum

Encyclopedia: Fraternity