›to choose someone officially to do a particular job: Traditionally, the director designates his or her successor.designate sb (as) sth/to be sthThompson has been designated as new department head. designate sb to do sthShe has been designated to organize the meeting.
›to state officially that a place or thing has a particular character or purpose: designate sth for sthThis area of the plant has been specially designated for research and development.designate sth (as) sthThey officially designated the building as unsuitable for human habitation.