siblings

brothers and sisters

Big Boss, movie name

Super Mario Bros

Twin brothers

noun; brothers who are related have stronger obligations to each other than to people outside the family; "blood is thicker than water"

(slang) saying two people's friendship as good as brothers

distant male cousin

best male mates (spoken)

address each other as brothers; be on intimate terms

(noun) sworn sisters or brothers

brothers-in-law whose wives are sisters; a more modern interpretation of this phrase is to refer to two guys who have slept with the same woman

Blood brothers

sworn brothers [colloquial]

brother

elder fellow disciple

siblings

paternal cousins

brothers and sisters

older brother

Warner Bros.

cousins