painting vs water-color

painting and water-color both are nouns.

Word	Noun	Adjective	Verb	Adverb
painting	Yes	No	No	No
water-color	Yes	No	No	No

As nouns, water-color is a hyponym of painting; that is, water-color is a word with a more specific, narrower meaning than painting:

As nouns, water-color is a hyponym of painting; that is, water-color is a word with a more specific, narrower meaning than painting:

painting: graphic art consisting of an artistic composition made by applying paints to a surface
water-color: a painting produced with watercolors

painting (noun)	water-color (noun)
creating a picture with paints	the art or technique of painting with watercolors
the occupation of a house painter	a painting produced with watercolors
the act of applying paint to a surface	a water-base paint (with water-soluble pigments); used by artists
graphic art consisting of an artistic composition made by applying paints to a surface	water-soluble pigment