spirochete vs eubacteria

spirochete and eubacteria both are nouns.

Word	Noun	Adjective	Verb	Adverb
spirochete	Yes	No	No	No
eubacteria	Yes	No	No	No

As nouns, eubacteria is a hypernym of spirochete; that is, eubacteria is a word with a broader meaning than spirochete:

spirochete: parasitic or free-living bacteria; many pathogenic to humans and other animals
eubacteria: a large group of bacteria having rigid cell walls; motile types have flagella

Other hypernyms of spirochete include eubacterium, true bacteria.

spirochete (noun)	eubacteria (noun)
parasitic or free-living bacteria; many pathogenic to humans and other animals	a large group of bacteria having rigid cell walls; motile types have flagella