Shun love (4)
I believe the answer is:
duck
I believe this is a double definition.
'shun' is the first definition.
(thesaurus)
'love' is the second definition.
(love and duck mean zero in tennis and cricket)
(Other definitions for duck that I've seen before include "Shoveler, for example" , "Zero runs; bird" , "Dear; bird; fabric" , "Zero score; avoid" , "strong cloth" .)