What does S/S mean in Governmental & Military

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All S/S meanings

What does S/S stand for?

S/S stands for "Sound Signalling"

How to abbreviate "Sound Signalling"?

"Sound Signalling" can be abbreviated as S/S

What is the meaning of S/S abbreviation?

The meaning of S/S abbreviation is "Sound Signalling"

What does S/S mean?

S/S as abbreviation means "Sound Signalling"