stake ‧ hold ‧ er /ˈsteɪkˌhəʊldə $ -ˌhoʊldər/ BrE AmE noun [countable]
1 . someone who has ↑ invest ed money into something, or who has some important connection with it, and therefore is affected by its success or failure
stakeholder in
Citizens should be stakeholders in the society they live in.
2 . law someone, usually a lawyer, who takes charge of a property during a quarrel or a sale
3 . someone chosen to hold the money that is risked by people on a race, competition etc and to give all of it to the winner