What is card txns?

Could you please elaborate on the term "card txns"? I understand that it likely refers to some kind of transaction involving cards, but I'm unsure of the specific context or what type of cards are involved. Is it related to credit card transactions? Debit card transactions? Prepaid cards? Or perhaps it's a term used in the cryptocurrency space? I'm curious to know more about what this phrase means and how it is used in practice. Thank you for your assistance in clarifying this term.