talk down vs belittle

talk down and belittle both are verbs.

Word	Noun	Adjective	Verb	Adverb
talk down	No	No	Yes	No
belittle	No	No	Yes	No

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

Other hypernyms of talk down include denigrate, derogate, minimize.

talk down (verb)	belittle (verb)
belittle through talk	lessen the authority, dignity, or reputation of
speak in a condescending manner, as if to a child	express a negative opinion of
direct and control (the flight of an airplane during landing) via radio	cause to seem less serious; play down