designate

Designated; appointed; chosen.

Used after a role title to indicate that the person has been selected but has yet to take up the role.

King designate

To mark out and make known; to point out; to indicate; to show; to distinguish by marks or description

to designate the boundaries of a country

to designate the rioters who are to be arrested

To call by a distinctive title; to name.

"Yes, let 'Sister' Davis have a whack at it too," urged George Bland. Tom Davis, who was Joe Matson's particular chum, was designated "Sister" because, in an incautious moment, when first coming to Excelsior Hall, he had shown a picture of his very pretty sister, Mabel.

To indicate or set apart for a purpose or duty — with to or for; to designate an officer for or to the command of a post or station.