ID, identity, membership
business, calling, visiting (esp. BrE)
appointment, invitation (esp. BrE)
index, record, report
green (= a document that legally allows sb to live and work in the US)
flash (usually flashcard)
laminated
swipe
punch
smart

hand sb, hand out
He went around the room handing out business cards.

scan, swipe
insert

catalogue
She searched the library's card catalogue.

reader

on a/the card
Write the main points of your speech on cards.

plastic
He had a wallet full of plastic cards.

ATM (esp. AmE), cash, charge, credit, debit
cheque/check, cheque guarantee (BrE)
phone
prepaid (esp. AmE)
ration

pay by, put sth on, use
She paid for the hotel by credit card.
I'll put the meal on my card.

accept, take
The restaurant accepts all major credit cards.

issue (sb with)
The bank hasn't issued me with a cash card yet.

cancel
Contact the bank and cancel all your cards.

number
holder
company, issuer
payment, transaction

graphics, memory, network, PC, sound, video, wireless

install
You need to install a new graphics card.

slot
The computer has three additional card slots.

greeting (AmE), greetings (BrE)
birthday, Christmas, get-well, holiday (AmE), sympathy

give sb, send sb
sign, write
Everyone at work signed a card for her.

get, receive

playing
winning
court (BrE), face, picture
tarot
baseball (AmE), trading
trump (often figurative)
This defender's ability to score vital goals has often proved a trump card.

wild (often figurative)
Bennett is something of a wild card (= it is difficult to predict what he will do).

deck (AmE), pack (BrE)
hand

cut, deal, shuffle
play
Each player in turn must play a card.

pick
‘Pick a card,’ said the conjurer.

hold (often figurative)
The kidnappers hold all the cards(= are in control of the situation).

game
player
playing
trick
table

game

play
We play cards every Friday night.

lose at, win at
He always wins at cards.