• brethern,
• brither,
• brotther,
• berother,
• brothere,
• brothe,
• brotehrs,
• brothor,
• brothres,
• bothes,
• brochers,
• buthers,
• brorders,
• forothers,
• brothar,
• brotthers,
• brotheren,
• brothr,
• brotherr,
• brethes

• breeder,
• brotherly,
• brooder,
• Bret Harte,
• brotherlike,
• breather,
• bothers,
• broider,
• bruder,
• brotherton,
• brodersen,
• bratwurst,
• brotherhood,
• brader,
• brother,
• Broderson,
• Broder,
• browder,
• breathes.

The adjective form of the word "brothers" is "brotherly".