blueing vs dyestuff

blueing and dyestuff both are nouns.

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

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

blueing: 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 blueing include dye.

blueing (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