monster vs freak

monster and freak both are nouns.

Word	Noun	Adjective	Verb	Adverb
monster	Yes	No	No	No
freak	Yes	No	Yes	No

As nouns, monster and freak are synonyms defined as:

monster and freak: a person or animal that is markedly unusual or deformed

Other synonyms of monster include lusus naturae, monstrosity.

monster (noun)	freak (noun)
(medicine) a grossly malformed and usually nonviable fetus	a person or animal that is markedly unusual or deformed
a cruel wicked and inhuman person	someone who is so ardently devoted to something that it resembles an addiction
a person or animal that is markedly unusual or deformed
an imaginary creature usually having various human and animal parts
someone that is abnormally large and powerful

monster (verb)	freak (verb)
	lose one's nerve