A period of time. Example: the interval between contractions during childbirth
The difference (a ratio or logarithmic measure) in pitch between two notes, often referring to those two pitches themselves (otherwise known as a dyad).
A connected section of the real line which may be empty or have a length of zero.
An intermission.
Half time, a scheduled intermission between the periods of play
Either of the two breaks, at lunch and tea, between the three sessions of a day's play
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