Pronunciation: [kˈiːkɑːd] (IPA) 
The spelling of the word "keycard" follows the pattern of words that combine two words into one. The first part of the word "key" is pronounced as /ki/, and the second part "card" is pronounced as /kɑːd/. In IPA phonetic transcription, this would be written as /ˈkiː.kɑːd/. This word refers to a card that is used to gain access to restricted areas or to activate machines. It is commonly used in hotels and office buildings.
A keycard, also referred to as a proximity card or an access card, is a portable identification device that provides authorized access to restricted areas or facilities. It typically consists of a small plastic card embedded with a microchip or magnetic strip that holds encoded data, enabling it to interact with card readers and grant entry privileges.
Keycards serve as a secure alternative to traditional lock and key systems, offering convenience and enhanced security measures. They are widely used in hotels, office buildings, educational institutions, and other establishments that require controlled access to certain areas.
To utilize a keycard, the user must present the card to a card reader placed near the entrance of a restricted area. The reader then examines the encoded information on the card and verifies its authenticity. Upon successful verification, the reader electronically triggers the unlocking mechanism, granting access to the individual. Some keycards may also require the user to input a personal identification number (PIN) for additional security.
Keycards are designed to streamline access control by eliminating the need for physical keys and reducing the risk of unauthorized entry. They provide an efficient means of managing security systems and allow administrators to easily grant or revoke access privileges for specific individuals or groups. Furthermore, the electronic nature of keycards allows for comprehensive tracking and auditing of access events, enabling security personnel to monitor entry history and detect any anomalies.
The word "keycard" is a compound word formed by combining "key" and "card".
The term "key" comes from the Old English word "cǣg" which means "device used to open or lock something". It can be traced back to the Proto-Germanic word "kaigaz".
The word "card" originated from the Middle English word "carde" or "cardeu" which refers to a piece of thick, stiff paper or pasteboard. It can be derived from the Latin word "charta" meaning "paper" or the Greek word "khártēs" meaning "papyrus leaf".
When the two words are combined, "keycard" refers to a specifically designed card that functions as a key or a device for opening or accessing something, such as a door or a secure area.
