bluing vs dyestuff

bluing and dyestuff both are nouns.

Word	Noun	Adjective	Verb	Adverb
bluing	Yes	No	No	No
dyestuff	Yes	No	No	No

As nouns, dyestuff is a hypernym of bluing; that is, dyestuff is a word with a broader meaning than bluing:

bluing: used to whiten laundry or hair or give it a bluish tinge
dyestuff: a usually soluble substance for staining or coloring e.g. fabrics or hair

Other hypernyms of bluing include dye.

bluing (noun)	dyestuff (noun)
a process that makes something blue (or bluish)	a usually soluble substance for staining or coloring e.g. fabrics or hair
used to whiten laundry or hair or give it a bluish tinge