interval

A distance in space.

'Twixt host and host but narrow space was left, / A dreadful interval.

[M]any attempts were made to prevent the spreading of it [the fire] by pulling down Houses, and making great Intervals, but all in vain, the Fire seizing upon the Timber and Rubbish, and so continuing it set even through those spaces […]

A period of time.

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.