Event Abbreviations and Acronyms

1. OPIE
   Optics & Photonics Intyrnational Exhibition
2. OPR
   Overnight Plan Rate
3. OPVA
   Oregon Paralyzed Veterans of America
4. ORA
   OkrĘGowa Rada Adwokacka
5. ORCA
   Ontario Romanian Canadian Association
6. OREC
   Ocean Renewable Energy Conference
7. ORNC
   Old Royal Naval College
8. ORPEC
   Oman Refining & Petrochemical Exhibition & Conference
9. ORTA
   Olympic Roads and Transport Authority
10. ORUUC
    Oak Riqge Unitarian Universalist Church
11. OSB
    One Step Beyond
12. OSHE
    Oregon Society for Healthcare Engineering
13. OSMB
    Open Source Meets Business
14. OSOM
    Open Source Open Mind
15. OSS
    Old School Saturday
16. OSS
    Open Source Summit
17. OSU
    Overseas Singaporean Unit
18. OTB
    Ontside The Box
19. OTC
    Offshore Technology Conference
20. OTCC
    Ontario Turtle Conservation Centre

Last updated: May 23, 2020 — Total entries: 4,601