Finished six deliveries (4)
I believe the answer is:
over
I believe this is a double definition.
'finished' is the first definition.
(over can mean finished or ended)
'six deliveries' is the second definition.
(a cricket over consists of six deliveries)
(Other definitions for over that I've seen before include "Work out of hours" , "Accomplished" , "Beyond; finished" , "Higher than; finished" , "completed" .)