fraternity has definitions from the field of sociology
1
[ noun ] a social club for male undergraduates

Synonyms

frat

Used in print

(David Boroff, "Jewish Teen-Age Culture"...)

And the school newspaper sells space to jubilant fraternities , sororities , and houses ( in the House_Plan_Association ) that have good news to impart .

Related terms

club chapter

2
[ noun ] (sociology) people engaged in a particular occupation

Examples

"the medical fraternity"

Related terms

class brother sodalist

*