Interval
# Interval

Interval may refer to:

## Mathematics and physics

* Interval (mathematics), a range of numbers
   * Partially ordered set#Intervals, its generalization from numbers to arbitrary partially ordered sets
* A statistical level of measurement
* Interval estimate
* Interval (graph theory)
* Space-time interval, the distance between two points in 4-space

## Arts and entertainment

### Dramatic arts

* Intermission, (British English: interval), a break in a theatrical performance
   * Entr'acte, a French term for the same, but used in English often to mean a musical performance played during the break
* Interval (play), a 1939 play by Sumner Locke Elliott
* Interval (film), a 1973 film starring Merle Oberon

### Music

* Interval (music), the relationship in pitch between two notes
* Intervals (band), a Canadian progressive metal band
* Intervals (See You Next Tuesday album), 2008
* Intervals (Ahmad Jamal album), 1980

## Sport

* Playing time (cricket)#Intervals, the breaks between play in cricket
* Interval training, a training technique used by runners and cyclists

## Other uses

* Interval Research Corporation, a technology think tank founded by Paul Allen
* Recess (break), a break between classes, also called "interval" in New Zealand
* Jerry Interval (1923–2006), American portrait photographer and educator
