HyperDic

English > 1 sense of the word half-brother:
NOUNperson half-brother, stepbrother, half brothera brother who has only one parent in common with you
English > half-brother: 1 sense > noun 1, person
MeaningA brother who has only one parent in common with you.
Synonymsstepbrother, half brother
Broaderbrother, blood brotherA male with the same parents as someone else