Abracadabra is an exclamation used by magicians while performing tricks or illusions. It is also associated with the notion of casting a spell or creating a magical effect.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: "The spell is cast! Don't blink or you'll miss it …" (go to 15-Down). Explanations are generated by AI and may be inaccurate.