reservoir vs Lake Volta

reservoir and Lake Volta both are nouns.

Word	Noun	Adjective	Verb	Adverb
reservoir	Yes	No	No	No
Lake Volta	Yes	No	No	No

reservoir (noun)	Lake Volta (noun)
tank used for collecting and storing a liquid (as water or oil)	the Volta river in southeastern has been dammed to create one of the world's largest man-made lakes
lake used to store water for community use; a lake (natural or artificial) used to store water and used as a source of water
anything (a person or animal or plant or substance) in which an infectious agent normally lives and multiplies
a large or extra supply of something