On Apple keyboards, a modifier key that was originally the "Apple key." Like the Control and Option keys, Command is pressed along with a letter or digit key to peform a function. The Command key is sometimes used like the Control key in Windows; for example, Command-P and Control-P print a document. However, the Mac's Option key is also used for Windows Control key functions. See Control key
The "Apple" Key
The Mac Command key is identified by its apple or cloverleaf symbols; in this case both. The cloverleaf is also known as the squiggle, pretzel and rugbeater.