1. the rate at which something occurs or is repeated over a particular period of time
2. the number of times a wave repeats in a given time period, measured in hertz
Usage: physics; technical
3. a radio wave of a particular wavelength
Usage: radio; telecommunications

Examples

• The frequency of earthquakes in this region has increased.
• She visits her grandmother with great frequency.
• The radio operates on a high frequency.
• Sound waves have different frequencies that determine pitch.
• The frequency of his phone calls worried his parents.
• Scientists measured the frequency of the light waves.
• The station broadcasts on multiple frequencies.