Meta Platforms, Inc., doing business as Meta, formerly called Facebook, Inc. (until late 2021); it is an American multinational technology conglomerate holding company that is the parent organization of Facebook, Instagram, and WhatsApp, among other subsidiaries.

Meta, a biomedical research discovery tool (2010-2022; scheduled for shutdown in 2023).

A city in Missouri.

Boundary marker.

(historical) Either of the conical columns at each end of an Ancient Roman circus.

(video games) Short for metagame.

(by extension, countable, Internet slang) An informal but widely adopted practice in a given field; a de facto standard.

(informal) Metoidioplasty.

(informal) Self-referential; structured analogously (structured by relationships), but at a higher level.

(video games) Prominent in the metagame; effective and frequently used in competitive gameplay.