hachure vs shading

hachure and shading both are nouns.

Word	Noun	Adjective	Verb	Adverb
hachure	Yes	No	No	No
shading	Yes	No	No	No

As nouns, shading is a hypernym of hachure; that is, shading is a word with a broader meaning than hachure:

hachure: shading consisting of multiple crossing lines
shading: graded markings that indicate light or shaded areas in a drawing or painting

hachure (noun)	shading (noun)
shading consisting of multiple crossing lines	a gradation involving small or imperceptible differences between grades
	graded markings that indicate light or shaded areas in a drawing or painting