Real Dictionary

delegate
If you are delegated to do something, you are given the duty of acting on someone else's behalf by making decisions, voting, or doing some particular work.
countable noun: A delegate is a person who is chosen to vote or make decisions on behalf of a group of other people, especially at a conference or a meeting.
verb: If you delegate duties, responsibilities, or power to someone, you give them those duties, those responsibilities, or that power so that they can act on your behalf.

delegate in American English
a person authorized or sent to speak and act for others; representative, as at a convention
to send or appoint as a representative or deputy
noun: a person designated to act for or represent another or others; deputy; representative, as in a political convention
transitive verb: to send or appoint (a person) as deputy or representative