- 1[uncountable, countable] the rate at which something happens or is repeated Fatal road accidents have decreased in frequency over recent years. a society with a high/low frequency (= happening often/not very often) of stable marriages The program can show us word frequency (= how often words occur in a language).
- 2[uncountable] the fact of something happening often the alarming frequency of computer errors Objects like this turn up at sales with surprising frequency.
- 3 [countable, uncountable] (technology) the rate at which a sound or electromagnetic wave vibrates (= moves up and down) a high/low frequency
- 4[countable, uncountable] (technology) the number of radio waves for every second of a radio signal a frequency band There are only a limited number of broadcasting frequencies.