Brother

brother (http://definr.com/brother)

     adj : being associated as a companion or associate; "fellow
           traveler"; "brother workers"; "sister ship" [syn: fellow(a),
            brother(a), sister(a)]
     n 1: a male with the same parents as someone else; "my brother
          still lives with our parents" [syn: blood brother]
          [ant: sister]
     2: a male person who is a fellow member (of a fraternity or
        religion of other group); "none of his brothers would
        betray him"
     3: a close friend who accompanies his buddies in their
        activities [syn: buddy, chum, crony, pal, sidekick]
     4: used as a term of address for those male persons engaged in
        the same movement; "Greetings, comrade!" [syn: comrade]
     5: (Roman Catholic) a title given to a monk and used as form of
        address; "a Benedictine Brother" [syn: Brother]