run batted in vs rbi

run batted in and rbi both are nouns.

Word	Noun	Adjective	Verb	Adverb
run batted in	Yes	No	No	No
rbi	Yes	No	No	No

As nouns, run batted in and rbi are synonyms defined as:

run batted in and rbi: a run that is the result of the batter's performance

run batted in (noun)	rbi (noun)
a run that is the result of the batter's performance	a run that is the result of the batter's performance