water-colour vs painting

water-colour and painting both are nouns.

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

As nouns, painting is a hypernym of water-colour; that is, painting is a word with a broader meaning than water-colour:

As nouns, painting is a hypernym of water-colour; that is, painting is a word with a broader meaning than water-colour:

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

Other hypernyms of water-colour include picture.

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