charm vs oral communication

charm and oral communication both are nouns.

Word	Noun	Adjective	Verb	Adverb
charm	Yes	No	Yes	No
oral communication	Yes	No	No	No

As nouns, oral communication is a hypernym of charm; that is, oral communication is a word with a broader meaning than charm:

charm (noun)	oral communication (noun)
something believed to bring good luck	(language) communication by word of mouth
attractiveness that interests or pleases or stimulates
(physics) one of the six flavors of quark, the third most massive of all quarks
a verbal formula believed to have magical force

charm (verb)	oral communication (verb)
induce into action by using one's charm
protect through supernatural powers or charms
attract; cause to be enamored
control by magic spells, as by practicing witchcraft