Architecture Abbreviations and Acronyms

1. ORSA
   Ottawa Regional Society of Architects
2. OS
   Open Space
3. OSB
   Oriented Strand Board
4. OSD
   On-Sine Stormwater Detention
5. OSD
   On-Site Stormwater Detention
6. OSIDS
   Open Service Interface Definitions
7. OSIRM
   Open System Interconnection Reference Model
8. OSR
   Open Side Ruled
9. OSS
   Office for Strategic Spaccs
10. OT
    Overflow Threshold
11. OTK
    oil tank
12. OTS
    Out of Service
13. OTS
    Open to Sky
14. OTW
    Out of This World
15. OTY
    Quantity
16. OUT
    Ouvlet
17. OUT
    Outlet
18. OUTR
    Office of Urban Transformations Research
19. OV
    Overflow
20. OV
    Operational Views

Last updated: April 3, 2022 — Total entries: 4,582