Sentence:  `` We 'd give him things to deliver , letters , checks , deeds and things like that '' , remembers his <WSD>half-brother</WSD> Walter , still in the real estate business in savannah , `` and learn days later that he 'd absent-mindedly stuffed them into his pocket . 
Meaning of the word marked with <WSD> tags:  a brother who has only one parent in common with you