Gigahertz (noun)

A unit of frequency equal to one billion hertz (1 GHz).

Origin:

The word "gigahertz" is derived from the si prefix "giga" which means billion, and "hertz", a unit of frequency. the word was first used in the late 20th century.

Examples:

1. The computer's processor runs at 3.6 gigahertz.
2. The frequency of the microwave oven is 2.4 gigahertz.
3. The radio wave has a frequency of 5 gigahertz.
4. The frequency of the sound wave is measured in hertz or gigahertz.
5. The frequency range for Wifi is 2.4 and 5 gigahertz.