What does SIN mean in Governmental & Military

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All SIN meanings

What does SIN stand for?

SIN stands for "Secure Identification Number"

How to abbreviate "Secure Identification Number"?

"Secure Identification Number" can be abbreviated as SIN

What is the meaning of SIN abbreviation?

The meaning of SIN abbreviation is "Secure Identification Number"

What does SIN mean?

SIN as abbreviation means "Secure Identification Number"