Abecedarian vs religious sect

Abecedarian and religious sect both are nouns.

Word	Noun	Adjective	Verb	Adverb
Abecedarian	Yes	No	No	No
religious sect	Yes	No	No	No

As nouns, religious sect is a hypernym of Abecedarian; that is, religious sect is a word with a broader meaning than Abecedarian:

Abecedarian: a 16th century sect of Anabaptists centered in Germany who had an absolute disdain for human knowledge
religious sect: a subdivision of a larger religious group

Other hypernyms of Abecedarian include religious order, sect.

Abecedarian (noun)	religious sect (noun)
a 16th century sect of Anabaptists centered in Germany who had an absolute disdain for human knowledge	a subdivision of a larger religious group