What Does Refresh Rate Mean?

Refresh rate is a characteristic of computer display monitors and projection devices that defines the frequency and ability of the device to repaint or redraw the entire visible display on the screen each second.

Techopedia Explains Refresh Rate

Refresh rate is a common figure used to gauge a computer monitor’s or device screen’s ability to effectively display the graphical and textual display output. It can be controlled using a compatible video/display card.