What does SI stand for?

The list of SI abbreviation meanings.

Stands For|1.2kAbbreviated As|0Related|0

1,276 entry under topic. ×

18
Special Intelligence(Army, Military)
3
Special instructions(Army, Military)
3
Surveillance and Intel(Military)
3
Support Installation(Military)
2
Service Indication(Telecommunications, Military, Telecom)
2
Skill Identifier(Military)
2
System International(Aviation, Military)
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APASmart Define. (2017). si. Retrieved September 25, 2026, from http://smartdefine.org/si/abbreviations/f/Military
ChicagoSmart Define. 2017. "si" http://smartdefine.org/si/abbreviations/f/Military (accessed September 25, 2026).
HarvardSmart Define 2017, si, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/si/abbreviations/f/Military>.
MLASmart Define. "si" 1 December 2017. Web. 25 September 2026. <http://smartdefine.org/si/abbreviations/f/Military>