definition of
Brother

[1] #1 Brother n. [brother, blood brother] a male with the same parents as someone else; "my brother still lives with our parents". wn

[2] #2 Brother n. [brother] a male person who is a fellow member (of a fraternity or religion or other group); "none of his brothers would betray him". wn

[3] #3 Brother n. [buddy, brother, chum, crony, pal, sidekick] a close friend who accompanies his buddies in their activities. wn

[4] #4 Brother n. [brother, comrade] used as a term of address for those male persons engaged in the same movement; "Greetings, comrade!". wn

[5] #5 Brother n. (Roman Catholic Church) a title given to a monk and used as form of address; "a Benedictine Brother". wn