liberator vs liberate

liberator is a noun but liberate is not a noun.

Word	Noun	Adjective	Verb	Adverb
liberator	Yes	No	No	No
liberate	No	No	Yes	No

liberator (noun)	liberate (noun)
someone who releases people from captivity or bondage

liberator (verb)	liberate (verb)
	release (gas or energy) as a result of a chemical reaction or physical decomposition
	grant freedom to
	give equal rights to; of women and minorities
	grant freedom to; free from confinement