Governmental & Military Abbreviations and Acronyms

1. SHX
   Shocks
2. SHY
   Syllable Hyphen
3. SI
   International System of Units
4. SI
   Side Impact
5. SI
   Signals Intelligence
6. SI
   Site Investigation
7. SI
   Smithsonian Institute
8. SI
   Sequential Injection
9. SI
   Special Inquiry
10. SI
    Sub Inspector
11. SI
    Systems Integration
12. SI
    International System of Units (Système international d'unités)
13. SI
    Special Investigator
14. SI
    Scientific Investigation
15. SI
    Special Intelligence
16. SI
    Smithsonian Institution (Washington, D.C.)
17. SI
    Statutory Instrument
18. SI
    Secure Internet
19. SI CHUAN
    Sichuan Airlines
20. SI/FS
    System Integration and Flight Software

Last updated: May 24, 2020 — Total entries: 74,797