Definition of frequency in English:


Line breaks: fre|quency
Pronunciation: /ˈfriːkw(ə)nsi

noun (plural frequencies)

  • 1 [mass noun] The rate at which something occurs over a particular period of time or in a given sample: an increase in the frequency of accidents due to increased overtime
    More example sentences
    • Over time, symptomatic periods may increase in frequency and severity.
    • Poch and Mannering found that the presence of a sight-distance restriction was found to significantly increase accident frequency.
    • Rest periods and frequency should be the same as those for increasing muscular strength.
  • 1.1The fact or state of being frequent or happening often.
    More example sentences
    • Although such things do happen with too great frequency, cases of ‘benign neglect’ are far more common.
    • The fact that it happened with apparent frequency seems like an important detail on many levels.
    • That happens with great frequency in the system.
    rate of occurrence, commonness, frequentness, prevalence, incidence, amount; rate of repetition, recurrence, repetition, persistence, regularity; Statistics distribution
  • 2The rate per second of a vibration constituting a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light): different thicknesses of glass will absorb different frequencies of sound (Symbol: f or ν)
    More example sentences
    • The answer, Zuckerwar explains, is that each one generates silent infrasound - long sound waves at a frequency below 20 hertz.
    • The Doppler effect is a change in the frequency of sound waves caused by moving objects.
    • Newton concluded that these forms of light vibrate at different frequencies.
  • 2.1The particular waveband at which radio signals are broadcast or transmitted: a radio station on a single AM radio frequency [mass noun]: a coding sequence to ensure that everyone changes frequency in the correct manner
    More example sentences
    • Suppose an FM radio station is assigned the broadcast frequency 100 MHz.
    • In short, it plugs into a headphones jack and transmits the signal over an FM frequency you choose.
    • Finally, he tuned his suit's radio to the frequency listed on the cover of the transmitter.


mid 16th century (gradually superseding late Middle English frequence; originally denoting a gathering of people): from Latin frequentia, from frequens, frequent- 'crowded, frequent'.

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Pronunciation: ˌkələrəˈto͝orə
elaborate ornamentation of a vocal melody