/ˈkɑɹd/
1.n.one of a set of small pieces of stiff paper marked in various ways and used for playing games or for telling fortunes
“he collected cards and traded them with the other boys”
2.n.a card certifying the identity of the bearer
“he had to show his card to get in”
3.n.a rectangular piece of stiff paper used to send messages (may have printed greetings or pictures)
“they sent us a card from Miami”