rattle on vs verbalise

rattle on and verbalise both are verbs.

Word	Noun	Adjective	Verb	Adverb
rattle on	No	No	Yes	No
verbalise	No	No	Yes	No

As verbs, verbalise is a hypernym of rattle on; that is, verbalise is a word with a broader meaning than rattle on:

Other hypernyms of rattle on include mouth, speak, talk, utter, verbalize.

rattle on (verb)	verbalise (verb)
talk incessantly and tiresomely	convert into a verb
	express in speech
	be verbose
	articulate; either verbally or with a cry, shout, or noise