twang vs pronounce

twang is a noun but pronounce is not a noun.

Word	Noun	Adjective	Verb	Adverb
twang	Yes	No	Yes	No
pronounce	No	No	Yes	No

As verbs, pronounce is a hypernym of twang; that is, pronounce is a word with a broader meaning than twang:

Other hypernyms of twang include articulate, enounce, enunciate, say, sound out.

twang (noun)	pronounce (noun)
exaggerated nasality in speech (as in some regional dialects)
a sharp vibrating sound (as of a plucked string)

twang (verb)	pronounce (verb)
pronounce with a nasal twang	pronounce judgment on
pluck (strings of an instrument)	speak, pronounce, or utter in a certain way
sound with a twang
cause to sound with a twang
twitch or throb with pain