Interval refers to a period of time between events or states.
In mathematics, an interval is a set of real numbers with the property that any number that lies between two numbers in the set is also included in the set.
In music, an interval is the difference in pitch between two sounds.
The term "interval" also refers to:
1. A pause or break in activity
2. The space between objects
3. In sports, a period of rest between periods of play