Acanthocephala vs phylum

Acanthocephala and phylum both are nouns.

Word	Noun	Adjective	Verb	Adverb
Acanthocephala	Yes	No	No	No
phylum	Yes	No	No	No

As nouns, phylum is a hypernym of Acanthocephala; that is, phylum is a word with a broader meaning than Acanthocephala:

Acanthocephala: phylum or class of elongated wormlike parasites that live in the intestines of vertebrates: spiny-headed worms
phylum: (biology) the major taxonomic group of animals and plants; contains classes

Acanthocephala (noun)	phylum (noun)
phylum or class of elongated wormlike parasites that live in the intestines of vertebrates: spiny-headed worms	(biology) the major taxonomic group of animals and plants; contains classes
	(linguistics) a large group of languages that are historically related