1. (noun) lake used to store water for community use

• artificial lake
• man-made lake

2. (noun) anything (a person or animal or plant or substance) in which an infectious agent normally lives and multiplies

• source

1. (noun) tank used for collecting and storing a liquid (as water or oil)

• cistern
• sump
• water tower

1. (noun) a large or extra supply of something

• supply

2. (noun) lake used to store water for community use

• lake

3. (noun) tank used for collecting and storing a liquid (as water or oil)

• storage tank
• tank

4. (noun) anything (a person or animal or plant or substance) in which an infectious agent normally lives and multiplies

• thing