What does SO/SM mean in Governmental & Military

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What does SO/SM stand for?

SO/SM stands for "Senior Officer, Submarine"

How to abbreviate "Senior Officer, Submarine"?

"Senior Officer, Submarine" can be abbreviated as SO/SM

What is the meaning of SO/SM abbreviation?

The meaning of SO/SM abbreviation is "Senior Officer, Submarine"

What does SO/SM mean?

SO/SM as abbreviation means "Senior Officer, Submarine"