/hæf brʌðər ɒn ðə ˈmʌðərz saɪd/ – Phrase
Definition: anh em cùng mẹ khác cha.
A more thorough explanation: A half-brother on the mother’s side refers to a person who shares one biological parent with another individual, specifically the mother, but not both parents. This relationship is legally recognized as a sibling relationship, albeit with only one parent in common.
Example: In the will, the deceased left a specific bequest to his half-brother on the mother’s side.