blending vs shading

blending and shading both are nouns.

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

As nouns, blending and shading are synonyms defined as:

blending and shading: a gradation involving small or imperceptible differences between grades

blending (noun)	shading (noun)
a gradation involving small or imperceptible differences between grades	a gradation involving small or imperceptible differences between grades
the act of blending components together thoroughly	graded markings that indicate light or shaded areas in a drawing or painting