Look up frequency in Wiktionary, the free dictionary.

Frequency refers to how often an event occurs within a period of time.

It may also refer to:

General

• Audio frequency, a periodic vibration whose frequency is audible to the average human.
• Statistical frequency, the number of times an event occurred in an experiment or the study
• Utility frequency or mains frequency, the frequency of an alternating current electricity supply
• Frequency spectrum, a continuum of vibrations of varying amplitude such as sound or light
• Frequency range or band, a part of a frequency spectrum dedicated to a particular use

Popular culture

• Frequency (film), a 2000 film starring Jim Caviezel and Dennis Quaid
• FM4 Frequency Festival, an Austrian music festival
• Frequency 1350, a student radio station based in Preston, England
• Frequency (video game), a music video game
• Frequencies (album), a 1991 album by electronic band LFO
• Frequency, a song by Fear Factory.

Medical

• Urinary frequency, a medical term used to describe the frequent passing of small amounts of urine, usually associated with urinary tract infections. It is often, but not always, accompanied by dysuria.

See also

• Periodicity

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