Once means that something happened one time. It may also refer to:In music:
Once , an album by the band Nightwish
Once , an album by The Tyde
Once, an album by Roy Harper
Once , opening track on Pearl Jam's debut album Ten.
In film:
Once, a 2006 Irish movie directed by John Carney
Other uses:
ONCE Group, an artists' collective in Ann Arbor, Michigan durin the 1950s and 1960s
ONCE, or Organización Nacional de Ciegos Españoles (National Organization of the Spanish Blind)
Liberty Seguros-Würth team, a road bicycle racing team previously (until 2003) sponsored by the ONCE
Balvanera, a neighbourhood in Buenos Aires, Argentina, which is alternatively called Once
Estación Once, a train station in the aforementioned Buenos Aires neighbourhood
Once and only once, also known as Don't repeat yourself, a computer programming philosophy
ONCEOnce
Source:
http://en.wikipedia.org/wiki/O.N.C.E