frequency */*/*/

UK [ˈfriːkwənsɪ] / US [ˈfrɪkwənsɪ] noun
Word forms "frequency":
singular frequency plural frequencies

1) [uncountable] the number of times that something happens during a period of time

frequency of:

Changes in sea temperature will increase the frequency of hurricanes.

with increasing frequency (= more often):

Accidents occur here with increasing frequency.

a) the number of instances of something

frequency of:

We hope this treatment will reduce the frequency of heart disease.

high/low frequency:

Words with higher frequency are likely to have more complex behaviour.

b) used for saying that something happens a lot

We became suspicious of the frequency and size of his bank withdrawals.

2)

a) [countable/uncountable] physics the rate at which a sound wave, light wave, or radio wave vibrates (= moves up and down)

a frequency of 7.5 MHz

b) the wavelength on which a radio programme is broadcast