Curling or boxing (5)
I believe the answer is:
sport
I believe this is a double definition.
'curling' is the first definition.
(thesaurus)
'boxing' is the second definition.
(thesaurus)
(Other definitions for sport that I've seen before include "Abnormal" , "Wear - game - generous type" , "Eg, cricket" , "entertainment" , "Fun in ports" .)