On Wikipedia and other Wikimedia Foundation projects, "bureaucrats" are community members that have the technical power to grant other users "administrator" and "bureaucrat" permissions. (They also have some other similar powers, such as to flag bots as legitimate and to remove administrative rights and bot flags.) However, they are strictly bound by policy and convention to never take a bureaucrat action except where explicitly authorized, either by direct community consensus, by voluntary resignation, where specifically authorized by policy, or by order of the "Arbitration Committee".
The name "bureaucrat" always seemed a bit odd for this position. In real life, in my experience, bureaucrats seemed to never have too much technical power but have pretty wide discretion to use it where they please, and this misnomer may be misleading to new contributors. Is there a better name for users who have a technically high level of power, but are in practice bound never to use it except when directed to do so by the community?