Games (7)
(Other definitions for olympic that I've seen before include "These games are held every four years" , "of certain events" , "Of ancient Greek site (of original games)" , "International athletic event" , "re situation in Greece" .)
'games' is the definition.
This is all the clue.
(Other definitions for matches that I've seen before include "ties" , "Agrees" , "Shares a colour with" , "Picks out for union potential" , "Contests or partnerships of equals" .)
(Other definitions for pastimes that I've seen before include "leisure activities" , "Hobbies or diversions" .)
(Other definitions for war that I've seen before include "Battle" , "Open hostility" , "Hostile situation" , "Large-scale conflict" , "series of engagements" .)