keycard

See also: key card

English

Alternative forms

Etymology 1

From key (lock opener) +‎ card (piece of plastic).

Noun

keycard (plural keycards)

  1. A usually plastic card which stores a digital signature that is used to operate an electronic access control lock.
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Etymology 2

From key (important) +‎ card (playing card).

Noun

keycard (plural keycards)

  1. (bridge) In Roman keycard Blackwood, an ace of any suit or the king of trumps.

Anagrams