interval

The definition of an interval is a space or a period of time between things.

(noun)

An example of an interval is a 15-minute gap between train arrivals.

See interval in Webster's New World College Dictionary

noun

a space between two things; gap; distance
a period of time between two points of time, events, etc.; intervening period
the extent of difference between two qualities, conditions, etc.
☆ intervale
Math. the set containing all numbers between two given numbers and including one, both, or neither end point
Music the difference in pitch between two tones

Origin: ME enterval, intervalle < OFr < L intervallum, lit., space between two palisades or walls < inter-, between + vallum, palisade, wall

Related Forms:

See interval in American Heritage Dictionary 4

noun

A space between two objects, points, or units.
The amount of time between two specified instants, events, or states.
One of a series of predetermined distances covered at regular time increments with intermittent periods of rest in an athletic workout.
Mathematics
a. A set of numbers consisting of all the numbers between a pair of given numbers along with either, both, or none of the endpoints.
b. A closed interval.
c. An open interval.
d. A half-open interval.
e. A line segment representing the set of numbers in an interval.
Chiefly British An intermission, as between acts of a play.
Music The difference, usually expressed in the number of steps, between two pitches.