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key card

American  

noun

  1. a plastic card, similar to a credit card, containing data on an embedded magnetized strip that can electronically unlock a door, activate a machine, etc.


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Once logged in, I had the option to choose between five different filming feeds, each showing several hotel rooms - visible as soon as a guest triggered the electricity supply by inserting their key card.

From BBC • Feb. 5, 2026

With a digital key card for Chuck’s Arcade starting at $10, the buy-in to try out the space isn’t large, but this felt like a tentative step into adulthood.

From Los Angeles Times • Aug. 28, 2025

Was it really appropriate for one of the plane maker’s key suppliers to be using Dawn dish soap and a hotel key card as part of its manufacturing process?

From New York Times • Apr. 11, 2024

And why couldn't I even remember how to use my key card?

From Salon • Sep. 3, 2023

Inside were credit cards, receipts, a Martha’s Vineyard library card, a Vassar ID, a Vassar dining hall meal card, a Starbucks card, a health insurance card, and the key card for Immie’s hotel room.

From "Genuine Fraud" by E. Lockhart

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