Function: noun
Date: 1979
: a credit card which is issued in affiliation with a participating organization (as a charity or an airline) and the use of which earns a benefit for the organization or the cardholder
AFFINITY CARD
Meaning of AFFINITY CARD in English
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012