What does the word mean what come on ghost radar?

There is no word "mean" that appears on a ghost radar. Ghost radars are fictional devices, often depicted in media, that are supposed to detect paranormal activity. They typically display various symbols, lights, and readings that are interpreted as evidence of ghosts.

The specific symbols and readings on a ghost radar can vary depending on the fictional device and the story it's featured in. There's no standard meaning or interpretation of any specific symbols or readings.

It's important to remember that ghost radars are not real devices and there is no scientific evidence to support their existence or claims of detecting ghosts.