カード

かーど
noun
card
1. card (credit, business, etc.)
A small rectangular piece of plastic or paper for identification, payment, or business purposes.
Can I pay by card?
Do you have a points card?
I withdrew money from an ATM using my bank card.
キャッシュカード = bank/ATM card
I forgot my credit card PIN.
I received my new company employee card, but the photo was terrible.
社員(しゃいん)カード = employee ID card
2. card (playing, greeting, etc.)
Cards used for games or sending messages.
Please draw a card.
I was happy to receive a birthday card.
The children are playing a card game.
I sent a Christmas card with a handwritten message.
Trading collected cards with friends was one of the joys of elementary school.

カード comes from English "card" and is used broadly for plastic cards (payment, ID) and paper cards (greeting, game).

TYPES OF CARDS:

COMMON PATTERNS:

NOTE:
Playing cards are called トランプ in Japanese (not カード). カードゲーム usually refers to trading card games or collectible card games.