frequency

noun

fre·​quen·​cy ˈfrē-kwən(t)-sē How to pronounce frequency (audio)
plural frequencies
1
: the fact or condition of occurring frequently
the frequency of automobile accidents
2
a
: the number of times that a periodic function repeats the same sequence of values during a unit variation of the independent variable
b
: the number, proportion, or percentage of items in a particular category in a set of data
3
: the number of repetitions of a periodic process in a unit of time: such as
a
: the number of complete alternations (see alternation sense 1) per second of an alternating current
b
: the number of complete oscillations (see oscillation sense 3) per second of energy (such as sound or electromagnetic radiation) in the form of waves

Examples of frequency in a Sentence

the alarming frequency of serious automobile accidents caused by young drivers The frequency of student errors was frustrating to the young teacher. Our visits decreased in frequency. Errors were occurring with increasing frequency. a sound wave of high frequency waves having very different frequencies from one another a current having a frequency of 60 hertz a radio frequency of 30 megahertz
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
This focuses analogue radio signals from the sky and sends them through a low-noise amplifier that boosts the signal, a bandpass filter that rejects signals outside the frequencies of interest and then through another low-noise amplifier. The Physics Arxiv Blog, Discover Magazine, 14 Nov. 2024 In response to backlash, Brownlee said the app would be dialing back its data disclosures and the frequency of ads for the free version. Kat Tenbarge, NBC News, 13 Nov. 2024 In truth, base clocks are nearly meaningless today and have been for more than a decade now, as the boost or turbo clock typically determines a CPU’s max operating frequency. PCMAG, 6 Nov. 2024 To help restore a stable heating supply in the city as winter approaches, UNICEF, with support from the government of Croatia, sent 47 frequency converters to Kharkiv. Katya Soldak, Forbes, 1 Nov. 2024 See all Example Sentences for frequency 

Word History

First Known Use

1600, in the meaning defined at sense 1

Time Traveler
The first known use of frequency was in 1600

Dictionary Entries Near frequency

Cite this Entry

“Frequency.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/frequency. Accessed 1 Dec. 2024.

Kids Definition

frequency

noun
fre·​quen·​cy ˈfrē-kwən-sē How to pronounce frequency (audio)
plural frequencies
1
: the fact or condition of happening often
2
: how often something happens : rate of repetition
3
: the number of repetitions of a periodic process in a unit of time: as
a
: the number of times per second that an electric current flowing in one direction changes direction then changes back
a current having a frequency of 60 hertz
b
: the number of waves (as of sound or electromagnetic energy) that pass a fixed point each second
a sound having a frequency of 1500 hertz
the frequency of yellow light
4
: the number or proportion of one kind of item in a group
the frequency of chocolate doughnuts in the box

Medical Definition

frequency

noun
fre·​quen·​cy ˈfrē-kwən-sē How to pronounce frequency (audio)
plural frequencies
1
: the number of individuals in a single class when objects are classified according to variations in a set of one or more specified attributes
2
: the number of repetitions of a periodic process in a unit of time

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