key

An object designed to open and close a lock. A card or fob that electronically signals a lock to open. A piece of information (e.g., a password or passphrase) used to encode or decode a message or messages. A password restricting access to an IRC channel.

Қалай қолдану керек

In everyday conversation, 'key' is often used to refer to a physical object used to unlock a door or a digital device. However, in more technical contexts, such as computer programming, a key can also refer to a specific piece of information, like a password or passphrase. It's worth noting that the phrase 'key in hand' is a common idiom, but it's often misused as 'key in the hand' by non-native speakers.