expurgation vs castration

expurgation and castration both are nouns.

Word	Noun	Adjective	Verb	Adverb
expurgation	Yes	No	No	No
castration	Yes	No	No	No

As nouns, expurgation and castration are synonyms defined as:

expurgation and castration: the deletion of objectionable parts from a literary work

expurgation (noun)	castration (noun)
the deletion of objectionable parts from a literary work	neutering a male animal by removing the testicles
	surgical removal of the testes or ovaries (usually to inhibit hormone secretion in cases of breast cancer in women or prostate cancer in men)
	the deletion of objectionable parts from a literary work