What does O/B mean in Governmental & Military

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All O/B meanings

What does O/B stand for?

O/B stands for "On Board"

How to abbreviate "On Board"?

"On Board" can be abbreviated as O/B

What is the meaning of O/B abbreviation?

The meaning of O/B abbreviation is "On Board"

What does O/B mean?

O/B as abbreviation means "On Board"