religious cult vs obeah

religious cult and obeah both are nouns.

Word	Noun	Adjective	Verb	Adverb
religious cult	Yes	No	No	No
obeah	Yes	No	No	No

As nouns, obeah is a hyponym of religious cult; that is, obeah is a word with a more specific, narrower meaning than religious cult:

religious cult: a system of religious beliefs and rituals
obeah: a religious belief of African origin involving witchcraft and sorcery; practiced in parts of the West Indies and tropical Americas

Other hyponyms of religious cult include cargo cult, macumba, obi, Rastafarianism, hoodooism, vodoun, voodoo, voodooism, sabianism.

religious cult (noun)	obeah (noun)
a system of religious beliefs and rituals	a religious belief of African origin involving witchcraft and sorcery; practiced in parts of the West Indies and tropical Americas
	(West Indies) followers of a religious system involving witchcraft and sorcery