on (someone's) behalf

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on (someone's) behalf

For the benefit, interest, or support of someone; as an agent, representative, or in place of someone. Our lawyer will be telephoning the department tomorrow on our behalf to ensure our application goes through as planned. This decision is on your behalf, so don't act so ungrateful!
See also: behalf, on
References in classic literature ?
Caswall came so soon after I arrived, that he, or someone on his behalf, must have been watching for me.
Finally, he was discovered by the military governor of the province of Ssuch`uan, who applied on his behalf for the post of Restorer of Ancient Monuments in the district, the one congenial appointment of his life.