Frequency

n. quality of occurring frequently or regularly; rate at which a function reoccurs; number of occurrences within a given period of time; number of wave cycles within a given period of time (i.e. the frequency of a radio wave)

FreQuency is a music video game developed by Harmonix and published by SCEI. It was released in November 2001. A sequel, titled Amplitude was released in 2003.
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Frequency is the measurement of the number of occurrences of a repeated event per unit of time. It is also defined as the rate of change of phase of a sinusoidal waveform.
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Noun
1. the number of occurrences within a given time period (usually 1 second); "the frequency of modulation was 40 cycles per second"
(synonym) frequence, oftenness
(hypernym) rate
(hyponym) audio, audio frequency
2. the ratio of the number of observations in a statistical category to the total number of observations
(synonym) relative frequency
(hypernym) ratio
(hyponym) incidence, relative incidence
3. the number of observations in a given statistical category
(synonym) absolute frequency
(hypernym) cardinal number, cardinal

(n.)
The condition of returning frequently; occurrence often repeated; common occurence; as, the frequency of crimes; the frequency of miracles.
  

(n.)
A crowd; a throng.
  

For a periodic function, the number of cycles or events per unit time. (188 )