The acronym TMZ stands for Thirty-Mile Zone. This refers to the historic "studio zone" in Los Angeles, California, which is a 30-mile radius centered around the intersection of West Beverly Boulevard and North La Cienega Boulevard. This zone was originally established in the 1960s by film and television studios to monitor rules for filming locations and union- related rates within the industry

. TMZ is also the name of a popular American celebrity news website and entertainment tabloid launched in 2005, which took its name from this studio zone concept. The site is known for celebrity gossip and breaking entertainment news, managed by Harvey Levin

. In summary:

• TMZ = Thirty-Mile Zone
• Refers to a 30-mile radius "studio zone" in Los Angeles
• Name adopted by the celebrity news website TMZ launched in 2005

Other meanings or slang uses of "TMZ" (such as meaning "tomorrow") are not related to this well-known entertainment brand and acronym