Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun frat

1 sense of frat

Sense 1
fraternity, frat -- (a social club for male undergraduates)
       => club, social club, society, guild, gild, lodge, order -- (a formal association of people with similar interests; "he joined a golf club"; "they formed a small lunch society"; "men from the fraternal order will staff the soup kitchen today")