Used to say that someone is acting or speaking as a representative of another person or group.
“On behalf of the management team, I would like to welcome you to the company.”
“She is writing on behalf of her supervisor, who is currently on leave.”
In Reading Part 1, a letter may be written 'on behalf of' a manager, department, or organization rather than by the person directly involved. Noticing this phrase helps clarify who the actual sender or decision-maker is, which is sometimes tested.
Synonyms: representing, in the name of, for