cantillate vs chant

cantillate is not a noun while chant is a noun.

Word	Noun	Adjective	Verb	Adverb
cantillate	No	No	Yes	No
chant	Yes	No	Yes	No

As verbs, cantillate and chant are synonyms defined as:

cantillate and chant: recite with musical intonation; recite as a chant or a psalm

Other synonyms of cantillate include intonate, intone.

cantillate (noun)	chant (noun)
	a repetitive song in which as many syllables as necessary are assigned to a single tone

cantillate (verb)	chant (verb)
recite with musical intonation; recite as a chant or a psalm	recite with musical intonation; recite as a chant or a psalm
	utter monotonously and repetitively and rhythmically