interval
n. countablen. a period of time or a space between two things. You often use this to describe a short break during a play or a sports match.
n. a period of time between two events or a physical distance between two points. In musical contexts, it refers to the difference in pitch between two notes.
There is a short interval between the two halves of the game.
The trains run at ten-minute intervals during the morning rush hour to prevent overcrowding on the platforms.
The study measured the heart rate of participants at regular intervals over a twenty-four-hour period to account for circadian fluctuations in cardiovascular activity.
From Middle English interval, intervalle, from Old French intervalle, entreval, from Latin intervallum (“space between, interval, distance, interval of time, pause, difference; literally, space between two palisades or walls”), from inter (“between”) + vallum (“palisade, wall”).
Often used with the preposition 'between' or 'at' ('at intervals').