frequency

noun fre·quen·cy \ ˈfrē-kwən(t)-sē \
|Updated on: 18 Jul 2018
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 1) per second of an alternating current
b : the number of complete oscillations (see oscillation 3) per second of energy (such as sound or electromagnetic radiation) in the form of waves

Examples of frequency in a Sentence

  1. the alarming frequency of serious automobile accidents caused by young drivers

  2. The frequency of student errors was frustrating to the young teacher.

  3. Our visits decreased in frequency.

  4. Errors were occurring with increasing frequency.

  5. a sound wave of high frequency

  6. waves having very different frequencies from one another

  7. a current having a frequency of 60 hertz

  8. a radio frequency of 30 megahertz

Recent Examples of frequency from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'frequency.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of frequency

1600

in the meaning defined at sense 1

See Words from the same year
NEW! Time Traveler

Other Electrical Engineering Terms


FREQUENCY Defined for Kids

frequency

noun fre·quen·cy \ ˈfrē-kwən-sē \
plural frequencies
1 : frequent repetition
  • Rain fell with frequency.
2 : rate of repetition
  • She went with increasing frequency.
3 : the number of waves of sound or energy that pass by a point every second
  • Tune the stereo to receive a specific frequency of radio waves.

Medical Dictionary

frequency

noun fre·quen·cy \ ˈfrē-kwən-sē \
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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