frequency

definition: the number of observations in a given statistical category
example:
speech part: noun
synonyms: absolute frequency
definition: the ratio of the number of observations in a statistical category to the total number of observations
example:
speech part: noun
synonyms: relative frequency
definition: the number of occurrences within a given time period
example: the frequency of modulation was 40 cycles per second
speech part: noun
synonyms: frequence oftenness

frequency is explained and pronounced

How frequency is being used?