"backup" - key terms from Wikipedia

backup
backup and restore center
backup band
backup camera
backup commander
backup copies
backup crew
backup dancer
backup dancers
backup data
backup designated router
backup feature
backup images
backup lmp
backup media
backup method
backup mode
backup mx
backup power
backup process
backup quarterback
backup router
backup scheme
backup server
backup singer
backup skylab
backup software
backup systems
backup taken
backup tapes
backup to gps
backup utilities
backup vocalist
backup vocals
backup window
computer backup
differential backup
digital backup
full backup
incremental backup
joined as a backup singer
key backup
main and amended backup
make backup
many backup
online backup
remote backup
sang backup vocals
synthetic backup
used as backup