frequency

From Latin frequentia, from frequens.

• enPR: frĕʹkwən-sē, IPA^(key): /ˈfɹiːkwənsi/

frequency (plural frequencies)

1. (uncountable) The rate of occurrence of anything; the relationship between incidence and time period.
   • With growing confidence, the Viking’s raids increased in frequency.
   • The frequency of bus service has been improved from 15 to 12 minutes.
2. (uncountable) The property of occurring often rather than infrequently.
   • The FAQ addresses questions that come up with some frequency.
   • The frequency of the visits was what annoyed him.
3. (countable) The quotient of the number of times ${\displaystyle n}$ a periodic phenomenon occurs over the time ${\displaystyle t}$ in which it occurs: ${\displaystyle f=n/t}$ .
   • The frequency of the musical note A above middle C is 440 oscillations per second.
   • The frequency of a wave is its velocity ${\displaystyle v}$ divided by its wavelength ${\displaystyle \lambda }$ : ${\displaystyle f=v/\lambda }$ .
   • Broadcasting live at a frequency of 98.3 megahertz, we’re your rock alternative!
   • The frequency for electric power in the Americas is generally 60 Hz rather than 50.
4. (statistics) number of times an event occurred in an experiment (absolute frequency)

• (rate of occurrence): oftenness
• freq

• (rate of occurrence): period

• frequent
• frequentative
• frequenter

• cadence
• commonness
• occurrence
• periodicity

• Frequency (disambiguation) on Wikipedia.Wikipedia
• frequency in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• frequency in The Century Dictionary, The Century Co., New York, 1911
• frequency at OneLook Dictionary Search

• quefrency