What does S/O mean in Governmental & Military

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All S/O meanings

What does S/O stand for?

S/O stands for "Shutoff"

How to abbreviate "Shutoff"?

"Shutoff" can be abbreviated as S/O

What is the meaning of S/O abbreviation?

The meaning of S/O abbreviation is "Shutoff"

What does S/O mean?

S/O as abbreviation means "Shutoff"