Acronyms, Abbreviations, and Initialisms.
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The meaning of the Acronym SISU is...

SISU is

  • Scandinavian Cargo Sea, A. B.

SISU is also in:

Acronym Definition Searched: EOCC VD 44103 PMC ASES DEPT SVA SQJ UNC NPB S WKOX RPM NVG FBI