Olympiad
Concise Oxford English Dictionary © 2008 Oxford University Press:
Olympiad /əˈlɪmpɪad/
▶noun
- 1 a staging of the ancient or modern Olympic Games.
- 2 a period of four years between Olympic Games, used by the ancient Greeks in dating events.
- 3 a major international contest in a game, sport, or scientific subject.
'Olympiad' also found in these Oxford entries:

