castigation vs going-over

castigation and going-over both are nouns.

Word	Noun	Adjective	Verb	Adverb
castigation	Yes	No	No	No
going-over	Yes	No	No	No

As nouns, castigation and going-over are synonyms defined as:

Other synonyms of castigation include bawling out, chewing out, dressing down, earful, upbraiding.

castigation (noun)	going-over (noun)
verbal punishment	a careful and thorough inspection
a severe scolding	a severe scolding