cut-rate sale vs sales event

cut-rate sale and sales event both are nouns.

Word	Noun	Adjective	Verb	Adverb
cut-rate sale	Yes	No	No	No
sales event	Yes	No	No	No

As nouns, cut-rate sale and sales event are synonyms defined as:

cut-rate sale and sales event: an occasion (usually brief) for buying at specially reduced prices

Other synonyms of cut-rate sale include sale.

cut-rate sale (noun)	sales event (noun)
an occasion (usually brief) for buying at specially reduced prices	an occasion (usually brief) for buying at specially reduced prices