tongue-lashing vs objurgation

tongue-lashing and objurgation both are nouns.

Word	Noun	Adjective	Verb	Adverb
tongue-lashing	Yes	No	No	No
objurgation	Yes	No	No	No

As nouns, tongue-lashing and objurgation are synonyms defined as:

Other synonyms of tongue-lashing include chiding, scolding.

tongue-lashing (noun)	objurgation (noun)
rebuking a person harshly	rebuking a person harshly