English ⇄ Norwegian Bokmål

backup ['bækʌp] n
comp., MS	síkkerhetskopi (A duplicate of a program, a disk, or data, made either for archiving purposes or for safeguarding files)
English thesaurus
Backup ['bækʌp] abbr.
abbr., file.ext.	.bak (file name extension); .bk! (file name extension, WordPerfect); .xlk (file name extension, Microsoft-Excel)
backup ['bækʌp] abbr.
abbr., mil., WMD	back.
IT	Files, equipment, data and procedures available for use in the event of a failure or loss, if the originals are destroyed or out of service

backup: 23 phrases in 3 subjects

Electronics	4
Lighting other than cinema	1
Microsoft	18