ripper vs liquidator

ripper and liquidator both are nouns.

Word	Noun	Adjective	Verb	Adverb
ripper	Yes	No	No	No
liquidator	Yes	No	No	No

As nouns, liquidator is a hypernym of ripper; that is, liquidator is a word with a broader meaning than ripper:

ripper: a murderer who slashes the victims with a knife
liquidator: a criminal who commits homicide (who performs the unlawful premeditated killing of another human being)

Other hypernyms of ripper include manslayer, murderer.

ripper (noun)	liquidator (noun)
a murderer who slashes the victims with a knife	(law) a person (usually appointed by a court of law) who liquidates assets or preserves them for the benefit of affected parties
	a criminal who commits homicide (who performs the unlawful premeditated killing of another human being)