- SOI
- Silicon On Insulator (Academic & Science » Electronics)* Southern Oscillation Index (Academic & Science » Ocean Science)* Sphere Of Influence (Governmental » Military)* Stars On Ice (Community » Sports)* Survey of India (Governmental)* Solutia, Inc. (Business » NYSE Symbols)* Signal Of Interest (Governmental » Military)* Signal Operation Instructions (Governmental » Transportation)* Solar Oscillations Investigation (Governmental » NASA)* Signal Operating Instructions (Governmental » Military)* Structure Of Intellect (Community » Educational)* Structure Of The Intellect (Medical » Laboratory)* Structure Of The Intellect (Community » Media)* Sports Outreach Institute (Community » Non-Profit Organizations)* Standard Operator Interface (Governmental » Military)* Sql Object Interface (Computing » General)* Simultaneous Orbit Iteration (Governmental » NASA)* South Molle Island, Queensland, Australia (Regional » Airport Codes)* Selecting Organizing And Integrating (Business » General)* Science Olympiad, Inc. (Community » Non-Profit Organizations)
Abbreviations dictionary. 2012.