From Longman Dictionary of Contemporary Englishadminad‧min /ˈædmɪn/ noun [uncountable] informal BBadministration an admin assistant She works in admin.
Examples from the Corpus
admin• You can buy some very advanced email admin software or you can choose to download some equally fine shareware.• After coffee, Lyn Staniforth gave her own personal view on how she saw her role as an office admin manager.• These would have to be organised between calls, together with other admin details that developed during the day.• Olivia was sitting with a group of social admin people, who were all ignoring her.• I checked my watch as I dialled: 9.15, which meant the admin shift should be into their first tea-break by now.• Under the clear astrodome she walked to the admin building, the sensors at Kandinskaya's door showing red.• The admin, they argue, is too fiddly.From Longman Business Dictionaryadminad‧min /ˈædmɪn/ noun [uncountable] especially British English informal the activities involved with managing or organizing the work of a company, organization etcSYNADMINISTRATIONShe works in admin.Origin admin (1900-2000) administration 