intone vs speak

intone and speak both are verbs.

Word	Noun	Adjective	Verb	Adverb
intone	No	No	Yes	No
speak	No	No	Yes	No

As verbs, speak is a hypernym of intone; that is, speak is a word with a broader meaning than intone:

Other hypernyms of intone include mouth, talk, utter, verbalise, verbalize.

intone (verb)	speak (verb)
recite with musical intonation; recite as a chant or a psalm	express in speech
speak carefully, as with rising and falling pitch or in a particular tone	exchange thoughts; talk with
utter monotonously and repetitively and rhythmically	use language
	give a speech to
	make a characteristic or natural sound