• noun:   tank used for collecting and storing a liquid (as water or oil)
• noun:   lake used to store water for community use
• noun:   anything (a person or animal or plant or substance) in which an infectious agent normally lives and multiplies

  Example: "An infectious agent depends on a reservoir for its survival"

• noun:   a large or extra supply of something

  Example: "A reservoir of talent"

Related words...