earful vs dressing down

earful and dressing down both are nouns.

Word	Noun	Adjective	Verb	Adverb
earful	Yes	No	No	No
dressing down	Yes	No	No	No

As nouns, earful and dressing down are synonyms defined as:

Other synonyms of earful include bawling out, castigation, chewing out, going-over, upbraiding.

earful (noun)	dressing down (noun)
a severe scolding	a severe scolding
an outpouring of gossip