a sports festival held every four years in different venues, instigated by the Frenchman Baron de Coubertin (1863–1937) in 1896. Athletes representing more than 200 countries compete for gold, silver, and bronze medals in more than twenty sports.
an ancient Greek festival with athletic, literary, and musical competitions held at Olympia every four years, traditionally from 776 bc until abolished by the Roman emperor Theodosius I in ad 393.
Olympic Games in other Oxford dictionaries
Definition of Olympic Games in the US English dictionary