for the benefit of somebody | for somebody’s benefitidiomPart ofbenefitfor the benefit of somebody | for somebody’s benefitfor the benefit of somebody | for somebody’s benefit — idiomidiom1. Done to help or be useful to a particular person.1.idiomDefinitionDone to help or be useful to a particular person.ExampleThe teacher repeated the instructions for the benefit of the new student.He organized the party for his sister's benefit, not his own.