What does UM stand for?
UM stands for "Unaccompanied Minor"
How to abbreviate "Unaccompanied Minor"?
"Unaccompanied Minor" can be abbreviated as UM
What is the meaning of UM abbreviation?
The meaning of UM abbreviation is "Unaccompanied Minor"
What does UM mean?
UM as abbreviation means "Unaccompanied Minor"