frequency
//ˈfriːkwənsi//
Noun
frequencySingular
frequenciesPlural
1
The rate at which something occurs or is repeated over a particular period of time or in a given sample.
The frequency of earthquakes has increased in this region.
2
The number of times a periodic wave or oscillation occurs per unit of time, measured in hertz.
The frequency of this sound wave is 440 hertz.
3
The fact or condition of being frequent; commonness of occurrence.
The frequency of earthquakes in this region has increased over the past decade.