Oxford Dictionary English

key card

noun
noun
BrE BrE//ˈkiː kɑːd//
; NAmE NAmE//ˈkiː kɑːrd//
(also card key)
BrE BrE//ˈkɑːd kiː//
; NAmE NAmE//ˈkɑːrd kiː//
(especially North American English)
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a special plastic card with information recorded on it that can be read by an electronic device, which can be used instead of a door key see also swipe card
See key card in the Oxford Advanced American Dictionary
Check pronunciation: key card
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