frequencies Definition

frequency
noun frequencies

1. The condition of happening often.

Thesaurus: regularity, recurrence, prevalence, repetition, reiteration.
2. The rate at which a happening, phenomenon, etc, recurs.
3. physics.
(SI unit hertz)a measure of the rate at which a complete cycle of wave motion is repeated per unit time.
4. radio.
The rate of sound waves per second at which a particular radio signal is sent out. See under very high frequency.
5. statistics.
The number of items, values, etc, that occur within a specified category, eg the number of students with a score of 90 to 100 in a class test may be five, so for that category the frequency is five.

Etymology: 17c in sense 1; 16c in obsolete sense ‘being crowded': from Latin frequens happening often.