Englishfor English speakers
interval
Noun
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A distance in space or in time.
There is a ten-minute interval between classes.
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In music, an interval is the difference in pitch between two notes.
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In mathematics, an interval is a connected section of the real line.
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(mostly British) An intermission.
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In the game of cricket, either of the two breaks, at lunch and tea, between the three sessions of a day's play.
cam
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noun
a rotating disk shaped to convert circular into linear motion
Cam
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noun
a river in east central England that flows past Cambridge to join the Ouse River