talk about vs verbalize

talk about and verbalize both are verbs.

Word	Noun	Adjective	Verb	Adverb
talk about	No	No	Yes	No
verbalize	No	No	Yes	No

As verbs, verbalize is a hypernym of talk about; that is, verbalize is a word with a broader meaning than talk about:

Other hypernyms of talk about include mouth, speak, talk, utter, verbalise.

talk about (verb)	verbalize (verb)
to consider or examine in speech or writing	convert into a verb
discuss or mention	express in speech
	be verbose
	articulate; either verbally or with a cry, shout, or noise