Pronunciation: [kˈiːləs] (IPA) 
The word "keyless" is spelled K-E-Y-L-E-S-S with the stress on the first syllable, /ˈkiːlɛs/. The word is composed of the root word "key" and the suffix "-less" which means without. It is used to describe something that does not require a key to function, such as a keyless entry system in a car or a keyless lock on a door. The spelling of the word is consistent with English spelling rules and corresponds to the pronunciation of the word.
Keyless is an adjective that describes something or someone that does not require or use a physical key for operation or access. It refers to any system or device that functions without the need for a traditional key. This term is commonly used in the context of modern technologies and security measures that have eliminated the need for physical keys.
In the automotive industry, the term keyless is often associated with vehicles equipped with keyless entry or keyless ignition systems. Such systems allow the driver to unlock or start the vehicle without using a physical key. Instead, a keyless fob or card is used, which communicates with the car electronically.
Keyless technology is also widely used in access control systems, such as in buildings or homes. These systems provide entry without the use of physical keys, typically by using electronic keycards, biometric data, or personalized codes.
Furthermore, keyless can also refer to digital or virtual keys used in various applications. For instance, keyless transactions involve making electronic payments without using a physical credit or debit card; instead, the payment is authorized digitally through apps or devices.
Overall, the term keyless indicates a departure from traditional mechanical keys and signifies the reliance on advanced electronic systems or digital methods for authentication, access, or control.
The word "keyless" is derived from the combination of the noun "key" and the suffix "-less".
The noun "key" originates from the Old English word "cǣg" which meant a metal device used for opening or closing a lock. Over time, it has evolved to refer to various types of devices used for unlocking or starting something, such as keys used to start an engine or keys used to open locks.
The suffix "-less" comes from the Old English word "-leas", which expresses the absence or lack of something. It is commonly used to form adjectives meaning "without" or "devoid of".
Therefore, combining "key" with "-less" yields the word "keyless", which describes something that does not require a key or lack of a key.
