Definition of key card in English:

key card

Syllabification: key card
(also card key)

noun

  • A small plastic card that can be used instead of a door key, bearing magnetically encoded data that can be read and processed by an electronic device.
    More example sentences
    • When she reached the door she inserted the card key and pulled it back.
    • He watched as she swiped the card key through the security lock of the door.
    • Taking my purse, I stuffed into it my card key and plane ticket.

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