man-made lake vs artificial lake

man-made lake and artificial lake both are nouns.

Word	Noun	Adjective	Verb	Adverb
man-made lake	Yes	No	No	No
artificial lake	Yes	No	No	No

As nouns, man-made lake and artificial lake are synonyms defined as:

man-made lake and artificial lake: lake used to store water for community use; a lake (natural or artificial) used to store water and used as a source of water

Other synonyms of man-made lake include reservoir.

man-made lake (noun)	artificial lake (noun)
lake used to store water for community use; a lake (natural or artificial) used to store water and used as a source of water	lake used to store water for community use; a lake (natural or artificial) used to store water and used as a source of water