- 
        key grabbing 
      
- 
        Keys on the keyboard can be passively grabbed by a client. When
        the key is pressed, the keyboard is then actively grabbed by the
        client. 
      
- 
        keyboard grabbing 
      
- 
        A client can actively grab control of the keyboard, and key
        events will be sent to that client rather than the client to which the
        events would normally have been sent. 
      
- 
        keysym 
      
- 
        An encoding of a symbol on a keycap on a keyboard.