conservator

conservator is a Noun

Definition:

[1] One who preserves from injury or violation; a protector; a preserver. The great Creator and Conservator of the world. Derham.

[2] An officer who has charge of preserving the public peace, as a justice or sheriff.

[3] One who has an official charge of preserving the rights and privileges of a city, corporation, community, or estate. The lords of the secret council were likewise made conservators of the peace of the two kingdoms. Clarendon. The conservator of the estate of an idiot. Bouvier. Conservators of the River Thames, a board of comissioners instituted by Parliament to have the conservancy of the Thames.