A year whose number is divisible by four in which most events that operate on a four year cycle take place, such as leap year, summer olympics, and the United States presidential election.
Y2K was one hectic number four year.
by gateway_gamer January 03, 2004
Can you define these popular missing words?
The first ever Urban Dictionary Word of the Day (December 30, 2004).
Number four years are pretty interesting...You should check them out sometime...
by mehhe meh September 08, 2012