pigment vs colouring material

pigment and colouring material both are nouns.

Word	Noun	Adjective	Verb	Adverb
pigment	Yes	No	Yes	No
colouring material	Yes	No	No	No

As nouns, colouring material is a hypernym of pigment; that is, colouring material is a word with a broader meaning than pigment:

pigment: a substance used as a coating to protect or decorate a surface (especially a mixture of pigment suspended in a liquid); dries to form a hard coating
colouring material: any material used for its color

Other hypernyms of pigment include coat, coating, color, coloring material, colour.

As nouns, colouring material is a hypernym of pigment; that is, colouring material is a word with a broader meaning than pigment:

pigment: dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.)
colouring material: any material used for its color

Other hypernyms of pigment include color, coloring material, colour.

As nouns, colouring material is a hypernym of pigment; that is, colouring material is a word with a broader meaning than pigment:

pigment: any substance whose presence in plant or animal tissues produces a characteristic color
colouring material: any material used for its color

Other hypernyms of pigment include color, coloring material, colour.

pigment (noun)	colouring material (noun)
a substance used as a coating to protect or decorate a surface (especially a mixture of pigment suspended in a liquid); dries to form a hard coating	any material used for its color
dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.)
any substance whose presence in plant or animal tissues produces a characteristic color

pigment (verb)	colouring material (verb)
color or dye with a pigment
acquire pigment; become colored or imbued