| backup | |
| 1. n. A reserve or substitute. | |
| If the goalkeeper is injured, we have a backup. | |
| 2. n. (computing) A copy of a file or record, stored separately from the original, that can be used to recover the original if it is destroyed or damaged. | |
| After the power failure, we had to restore the database from backup. | |
| 3. n. An accumulation of material caused by a (partial) obstruction or (complete) blockage of the flow or movement of the material, or an accumulation of material that causes an overflow due to the flow bei | |
| The accident caused a mile-long backup on the highway. | |
| The blockage caused a backup in the plumbing. | |
| 4. n. (law enforcement) reinforcements | |
| He's got a gun! You'd better send for backup. | |
| 5. adj. Standby, reserve or extra. | |
| I am only a backup player. | |
| 6. adj. (computing) That is intended as a backup. | |
| Make a backup copy of that file. | |
| 7. v. misspelling of back up | |
