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frequency

frequency

495 3.0
How often something happens over time
  • noun
  • /ˈfriːkwənsi/
translation icon : frecuencia
  • Note: Scale measures the frequency with which the respondent's organization engages in each activity.
  • high frequency
  • low frequency
  • frequency of use

We can then choose the right frequency to play on the speaker.

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Examples

  • In principle, changes in climate should show up in rainfall statistics, hurricane frequency, temperature records, and so forth.

    Academic text (2011)
  • There is some evidence that acupuncture helps the frequency but not the severity of attacks.

    Academic text (2011)
  • We can then choose the right frequency to play on the speaker.

  • See if you can get the frequency of the bus driver's radio.

  • And this is the frequency of storms with this wind speed.

  • Such days, everybody knew, occurred with amazing frequency during the winter, spring, and autumn months.

    Fiction book (1990)
  • In dry temperate forests, fires historically burned with greater frequency and lower severity than they do today.

    Academic text (2011)
  • Scientists say that climate change is increasing the intensity and frequency of heavy rainstorms.

  • Americans, not surprisingly, will drive their new toys with greater frequency and distance this holiday season.

  • Slow, deep abdominal breathing reduces the frequency of hot flashes by 39%, research says.

Synonyms

rate
vsfrequency
2.1

The speed or amount at which something happens over time

focuses specifically on counting times within a period or in statistics
incidence
vsfrequency
45 5.3

How often something happens, especially bad events

is the neutral count of occurrences without implying badness
freq
vsfrequency
  • Informal
2 9.5

How often something happens

has identical meaning but appears as the full standard form

Antonyms

31 6.2

Something that is not common and happens only sometimes

1 8.3

The state of not happening often

Compounds

radio frequency
  • Specialized
13 4.1

A range of waves used to send wireless signals, for example in radios or phones

A sound made by very fast vibrations that we hear as high

A sound or wave that has long waves and a low pitch

frequency band
  • Specialized
2 4.2

A range of radio waves used for one purpose, like TV or radio

low frequency
  • Specialized
2 4.9

A radio frequency between 30 and 300 kilohertz used for communication

high frequency
  • Specialized
1 4.6

A range of radio waves used to communicate over long distances

1 6.8

Radio waves below 3 kilohertz that scientists and the military use for long-distance communication and measurement

very low frequency
  • Specialized
1 6.5

A range of very low radio waves used for communication over long distances, for example by submarines

relative frequency
  • Specialized
1 5.1

The number of times something happens compared with the total number of cases

audio frequency
  • Specialized
1 4.0

A sound frequency people can hear, usually 20 to 20,000 hertz

1 4.5

A range of very high radio waves used for microwave and satellite signals

1 4.7

A table or chart that shows how often each value appears in a set of data

frequency response
  • Specialized
1 6.9

The amount a device or system changes output at different frequencies

fundamental frequency
  • Specialized
1 4.9

The lowest note a sound makes that decides its pitch

superhigh frequency
  • Specialized
1 7.4

Very high radio waves used for radar, microwaves, and satellite communication

ultrahigh frequency
  • Specialized
1 4.6

Radio waves between 300 and 3000 megahertz used for TV, mobile phones, and radar

very high frequency
  • Specialized
1 3.7

A radio frequency range from 30 to 300 megahertz used for FM radio, TV, and two-way radios

absolute frequency
  • Specialized
6.2

A count of how many times something appears in one category of data

frequency modulation
  • Specialized
4.7

A way of sending sound by changing how fast a radio wave vibrates

A graph showing how loudness changes across low and high tones

7.3

A graph that shows how loud a speaker or amplifier is at different frequencies

medium frequency
  • Specialized
4.8

A radio band used by AM stations and ship radios

infrared frequency
  • Specialized
6.1

A range of light waves below visible light, like the glow from a TV remote

Nyquist frequency
  • Specialized
7.8

The highest frequency that can be correctly recorded when a signal is sampled, equal to half the sampling rate

A method that uses radio waves to measure energy changes in atoms or molecules

4.5

A range of radio waves used to send signals for radio, TV and mobile phones

sampling frequency
  • Specialized
5.6

The number of times a system measures a changing signal each second

How Often

ubiquity
6 8.7
prevalence
16 5.4
rate
2.1
frequency
495 3.0
infrequency
1 8.3

Surface Forms

frequency singular
frequencies plural

Morphology

frequency = frequent (transparent) = frequent + cy

A direct nominalization of the adjective 'frequent' meaning 'occurring often,' so learners can infer 'how often something occurs.'

Etymology

Frequency comes from the same root as frequent, which used to mean 'crowded' or 'repeated often', so frequency is the simple count of how often something happens.