Deleting a word using keybinding

[Christopher Dimech]

   I am trying to delete a word using keybinding string "C-<tab>" but the
   Chord is still showing as undefined.

   I would like to delete a word even if I happen to be in the middle of
   it., so I move backward.

   Here is the function

   ( global-set-key (kbd "C-<tab>" )
       ( lambda () (interactive)
           ( (backward-word)
             (kill-word 1)
           )
       )
   )