behalf

Used when someone acts or speaks for another person or group.

• I accepted the award on her behalf.
• He signed the letter on behalf of the company.
• Can you speak on my behalf at the meeting?

How to use it: on behalf of someone (I am calling on behalf of my father.); on someone’s behalf (She collected the parcel on my behalf.)

Common phrases: on behalf of someone, on someone’s behalf

Used when something is done to help or protect someone’s interests.

• She worked tirelessly on the children’s behalf.
• They raised funds in behalf of injured workers.
• His efforts on our behalf saved many jobs.

How to use it: in behalf of someone (The charity campaigns in behalf of vulnerable families.)

Common phrases: in behalf of someone, on someone’s behalf