On a military ID card, "CH" stands for "Child." It indicates that the cardholder is a dependent child of a service member or veteran. This designation is used to identify the relationship for access to benefits and services related to military affiliation.
URW stands for Un-Remarried Widow.
Probably "Special Privileges."
It stands for STEP CHILD, child would be CH, and spouse is SP
Deceased.
Non-Petty Officer
Deceased (or dependent of the deceased).
means that the ID card is for a dependent of a service member i.e, Wife, Husband, Daughter, Son...
'DB' is short for 'Date of Birth.'
"Military direct" on a military ID card typically indicates that the cardholder is an active member of the military or a designated dependent. This designation allows access to various benefits, services, and privileges associated with military status, such as healthcare, discounts, and base access. It serves to identify the individual as someone who is currently serving or directly connected to the military.
== == It varies depending on the symbol.
if you mean credit card, it is the responsibility of the PRIME (meaning the person in whose name the card is under) card holder, so it is only ethical that the second card holder pays their own charges,
charges under Article of War 107