interval is on the Academic Word List.

Pronunciation change

Noun change

Singular
interval

Plural
intervals

  1. A distance in space or in time.
    There is a ten-minute interval between classes.
  2. In music, an interval is the difference in pitch between two notes.
  3. In mathematics, an interval is a connected section of the real line.
  4. (mostly British) An intermission.
  5. In the game of cricket, either of the two breaks, at lunch and tea, between the three sessions of a day's play.