perfecta vs exacta

perfecta and exacta both are nouns.

Word	Noun	Adjective	Verb	Adverb
perfecta	Yes	No	No	No
exacta	Yes	No	No	No

As nouns, perfecta and exacta are synonyms defined as:

perfecta and exacta: a bet that you can pick the first and second finishers in the right order

perfecta (noun)	exacta (noun)
a bet that you can pick the first and second finishers in the right order	a bet that you can pick the first and second finishers in the right order