| n. | 1. | The state or quality of being fraternal or brotherly; brotherhood. |
| 2. | A body of men associated for their common interest, business, or pleasure; a company; a brotherhood; a society; in the Roman Catholic Church, an association for special religious purposes, for relieving the sick and destitute, etc. | |
| 3. | Men of the same class, profession, occupation, character, or tastes. | |
| 4. | A social club for male college undergraduates. They often have secret initiation rites, and are named by the use of two or three Greek letters. The corresponding association for women students is called a |
| Noun | 1. | fraternity - a social club for male undergraduates Synonyms: frat |
| 2. | fraternity - people engaged in a particular occupation; "the medical fraternity" Synonyms: sodality, brotherhood |