assassination vs obloquy

assassination and obloquy both are nouns.

Word	Noun	Adjective	Verb	Adverb
assassination	Yes	No	No	No
obloquy	Yes	No	No	No

As nouns, obloquy is a hypernym of assassination; that is, obloquy is a word with a broader meaning than assassination:

assassination: an attack intended to ruin someone's reputation
obloquy: a false accusation of an offense or a malicious misrepresentation of someone's words or actions

Other hypernyms of assassination include calumniation, calumny, defamation, hatchet job, traducement.

assassination (noun)	obloquy (noun)
murder of a public figure by surprise attack	a false accusation of an offense or a malicious misrepresentation of someone's words or actions
an attack intended to ruin someone's reputation	state of disgrace resulting from public abuse