The best of ___ worlds (4)
I believe the answer is:
both
(Other definitions for both that I've seen before include "Two considered together" , "Each of two (alternatives)" , "The two (things)" , "couple" , "The one and the other" .)
I believe the answer is:
both
(Other definitions for both that I've seen before include "Two considered together" , "Each of two (alternatives)" , "The two (things)" , "couple" , "The one and the other" .)