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"
in an honest manner; "in he can't get it honestly, he is willing to steal it"; "was known for dealing aboveboard in everything"
(used as intensives reflecting the speaker's attitude) it is sincerely the case that; "honestly, I don't believe it"; "candidly, I think she doesn't have a conscience"; "frankly, my dear, I don't give a damn"