blood vs rounder

blood and rounder both are nouns.

Word	Noun	Adjective	Verb	Adverb
blood	Yes	No	Yes	No
rounder	Yes	No	No	No

As nouns, rounder is a hypernym of blood; that is, rounder is a word with a broader meaning than blood:

Other hypernyms of blood include debauchee, libertine.

blood (noun)	rounder (noun)
temperament or disposition	a tool for rounding corners or edges
the fluid (red in vertebrates) that is pumped through the body by the heart and contains plasma, blood cells, and platelets	a dissolute person; usually a man who is morally unrestrained
the hereditary derivation of an individual
people viewed as members of a group
a dissolute man in fashionable society

blood (verb)	rounder (verb)
smear with blood, as in a hunting initiation rite, where the face of a person is smeared with the blood of the kill