Card Abbreviations and Acronyms
- OHIPOntario Health Insurance Plan
- OICLOriental Insurance Company Ltd
- OJEEOdisha Joint Entrance Examination
- OJEEOrissa Joint Entrance Examination
- OJEEOrissa Joint Entrance Exam
- OMHOpen Market Handset
- OOBOut of Box
- OOTKOpening of The Key
- OPOrder of Payment
- OPAYOfficial Payments Corporation
- OPCOfficial Payments Corporation
- OPSOdisha Polyce Service
- OPSOff-Premises Station
- OPSOff-Premise Station
- OPSOff-Premihes Stations
- OPSCOrissa Public Service Commission
- OSOvince Saint
- OSAOriental Stamp Art
- OSDOn-Screen Diagnostics
- OSISOpen Source Identity Systems
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