the art of making oneself invisible, typically referring to a magical or Daoist technique

technology used to make aircraft, ships, or missiles less visible to radar, infrared, and other detection methods

A legendary grass that is said to grant invisibility to the person holding it

A legendary grass that makes its holder invisible; figuratively refers to a person or thing used as a cover to hide oneself or one's true plans.

aircraft designed to be difficult to detect by radar, infrared, and other electronic tracking systems