on behalf of someone
on someone's behalf
Definition of on behalf of someone
1 : as a representative of someone The teacher accepted the award on behalf of the whole class.
2 or US in behalf of someone or in someone's behalf : for the benefit of someone : in support of someone She spoke in behalf of the other candidate. They're willing to do anything on their child's behalf.
3 : because of someone Don't get up on my behalf.
Seen and Heard
What made you want to look up on behalf of someone? Please tell us where you read or heard it (including the quote, if possible).