preferment vs accusation

preferment and accusation both are nouns.

Word	Noun	Adjective	Verb	Adverb
preferment	Yes	No	No	No
accusation	Yes	No	No	No

As nouns, accusation is a hypernym of preferment; that is, accusation is a word with a broader meaning than preferment:

preferment: the act of making accusations
accusation: a formal charge of wrongdoing brought against a person; the act of imputing blame or guilt

Other hypernyms of preferment include accusal.

preferment (noun)	accusation (noun)
the act of preferring	a formal charge of wrongdoing brought against a person; the act of imputing blame or guilt
the act of making accusations	an assertion that someone is guilty of a fault or offence