card-key

[ kahrd-kee ]
/ ˈkɑrdˌki /

noun, plural card-keys.

a small plastic card with magnetic coding that is read electronically when inserted into a scanner and used in place of a key to open locks, hotel doors, etc.

QUIZZES

Can You Ace This Quiz About “Compliment” vs. “Complement”?
Take this quiz to see if you really know the difference between “compliment” and “complement"!
Question 1 of 11
“Compliment” and “complement” had a shared meaning a long time ago, but today they are no longer interchangeable.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020