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: 44032 S21BR GUS MSSS GIG WP SRIN CENIAP AWIPS XL 48334 SCP 33312 BDB 36205