plural
RBIs
or
RBI
plural
RBIs
or
RBI
Britannica Dictionary definition of RBI
[count]
baseball
:
a run that is scored as a result of a specific batter's hit, walk, etc.
◊ RBI is an abbreviation of “run batted in.”
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A runner scored from third base on his long fly out, so he'll get (credited with) an RBI on that play.
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He leads the league in RBIs.