be in charge of, act on, or dispose of; "I can deal with this crew of workers"; "This blender can't handle nuts"; "She managed her parents' affairs after they got too old"
tank used for collecting and storing a liquid (as water or oil)
lake used to store water for community use
anything (a person or animal or plant or substance) in which an infectious agent normally lives and multiplies; "an infectious agent depends on a reservoir for its survival"
a large or extra supply of something; "a reservoir of talent"