Simple Examples:
* The frequency of his visits decreased after he moved away.
* The radio station broadcasts at a frequency of 98.7 FM.
* She increased the frequency of her workouts to lose weight.
More Complex Examples:
* Scientists study the frequency of earthquakes in different regions to understand seismic activity.
* The frequency with which the team wins matches has increased significantly this season.
* The frequency of light waves determines its color.
* He found the frequency of her laughter to be quite infectious.
Using "frequency" as a noun:
* The frequency of her visits increased dramatically.
* The frequency of the sound waves determines the pitch of the music.
* He adjusted the frequency of the radio to pick up a different station.
Using "frequency" as an adjective:
* This is a frequency-specific tool used for measuring sound waves.
* The frequency-dependent effect on the device was significant.
As you can see, "frequency" can be used in various contexts to describe how often something happens, the rate of occurrence, or the rate of vibration in a wave.