Whats the difference between marked money and unmarked money?

Question

Whats the difference between marked money and unmarked money?

Answer 1

It was unmarked money before the dye bag went off - it became marked money after the dye bag went off.  The dye bag was put in with the money during the robbery

Answer 2

Marked money is money that has been marked in some way either visible or invisible so that if stolen it can be traced or identified.

Answer 3

Marked money has a mark on. Unmarked money doesn't

Answer 4

marked= money that has been marked with a counterfeit pen

unmarked= no markings whatsoever