The "command key" is a term used to refer to a specific key on a Mac keyboard. It is also known as the "Apple key" or "clover key," due to its icon featuring a stylized apple or cloverleaf symbol. Additionally, the "command key" is known as the "meta key," a term used in UNIX-based systems. It is also referred to as the "Windows key" in some instances. Some of the keyboard shortcuts that utilize the "command key" are based on the operating system, while others are specific to the application being used. Regardless of the name used, the "command key" remains a key component in Mac keyboards and is essential to many functions.