Definition of “interval” - English Dictionary

“interval” in British English

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intervalnoun [ C ]

uk /ˈɪn.tə.vəl/ us /ˈɪn.t̬ɚ.vəl/

interval noun [ C ] (TIME/DISTANCE)

C2 a period between two events or times:

We see each other at regular intervals - usually about once a month.

C2 the space between two points:

The plants should be spaced at six-inch intervals.

B1 UK US intermission a short period between the parts of a performance or a sports event:

There will be two 20-minute intervals during the opera.
He scored his first goal of the match three minutes after the interval.
at intervals

repeated after a particular period of time or a particular distance:

In the event of fire, the alarm will sound at 15-second intervals/at intervals of 15 seconds.

interval noun [ C ] (MUSIC)

specialized music the amount by which one note is higher or lower than another:

an interval of a fifth (= between one note and another one four notes higher)

(Definition of “interval” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“interval” in American English

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interval noun [ C ] (TIME OR SPACE)

us /ˈɪn·tər·vəl/ a period between two events or times, or the space between two points:

If there is a fire, the alarm will sound at 15-second intervals.
We’ve positioned guards around the embassy at intervals of 10 feet.

us /ˈɪn·tər·vəl/ Br An interval is an intermission.

interval noun [ C ] (MUSIC)

music /ˈɪnt·ər·vəl/ the difference in pitch between two notes

interval noun [ C ] (numbers)

mathematics /ˈɪn·tər·vəl/ the set of all numbers between two the two particular numbers given

(Definition of “interval” from the Cambridge Academic Content Dictionary © Cambridge University Press)