n an accumulation caused by clogging or a stoppage
a traffic backup on the main street he discovered a backup in the toilet
n someone who takes the place of another (as when things get dangerous or difficult)
n a musical part (vocal or instrumental) that supports or provides background for other musical parts
n (computer science) a copy of a file or directory on a separate storage device
he made a backup in case the original was accidentally damaged or erased
Backup Missouri linebacker dismissed after pot bust A backup Missouri linebacker arrested during the 2012 season on drug charges has been dismissed from the team.
June 18, 2013 - Jefferson City News Tribune
Backup Mizzou linebacker dismissed after pot bust COLUMBIA, Mo. (AP) -- A backup Missouri linebacker arrested during the 2012 season on drug charges has been dismissed from the team.
June 17, 2013 - The Associated Press via Yahoo! Sports
Brett Favre in USA Today They've been preaching about, 'We want to protect Brett's legacy' - we both know what that's about,Favre said. "How does that protect my legacy if I'm a backup? 'Brett, we'll welcome you back, we'll pay you $12 million, but you have to...
Donovan McNabb in Philadelphia Inquirer I don't understand why,McNabb said. "It wouldn't be any different with [backup] Kevin [Kolb]. I've been through many situations throughout my career where if I got injured or someone wasn't liking the way I was playing, they cheered for...
Doc Rivers in The Associated Press He's really a solid backup,something the Celtics have been lacking even as they reached the finals twice in three years, Rivers said. "He could be a starter one day in the league. It's tough to do that when Rondo's in front of you, but he...