Stargate

Stargate can be

 The Stargate Project, a project about artificial intelligence, and the project is being done by companies OpenAI, Oracle, MGX AbuDhabi, and Softbank.

Stargate, a movie franchise
 Stargate (movie), a 1994 science fiction movie directed by Roland Emmerich
Stargate SG-1, a science fiction television series based on the film
Stargate Atlantis, a spin off of Stargate SG-1
Stargate: The Ark of Truth, a 2008 science fiction film
Stargate: Continuum, a 2008 science fiction film
Stargate Universe, a spin off of Stargate SG-1