- an intervening period of time: an interval of 50 years.
- a period of temporary cessation; pause: intervals between the volleys of gunfire.
- a space between things, points, limits, etc.; interspace: an interval of ten feet between posts.
- Mathematics.
- the totality of points on a line between two designated points or endpoints that may or may not be included.
- any generalization of this to higher dimensions, as a rectangle with sides parallel to the coordinate axes.
- the space between soldiers or units in military formation.
- the difference in pitch between two tones, as between two tones sounded simultaneously (harmonic interval ) or between two tones sounded successively (melodic interval ).
- intervale.
- a period in a game for placing bets.
- an intermission, as between the acts of a play.
- at intervals,
- at particular periods of time; now and then: At intervals, there were formal receptions at the governor's mansion.
- at particular places, with gaps in between: detour signs at intervals along the highway.
- the period of time marked off by or between two events, instants, etc
- the distance between two points, objects, etc
- a pause or interlude, as between periods of intense activity
- a short period between parts of a play, concert, film, etc; intermission
- the difference of pitch between two notes, either sounded simultaneously (harmonic interval) or in succession as in a musical part (melodic interval). An interval is calculated by counting the (inclusive) number of notes of the diatonic scale between the two notes
- the ratio of the frequencies of two sounds
- the set containing all real numbers or points between two given numbers or points, called the endpoints. A closed interval includes the endpoints, but an open interval does not
- at intervals
- occasionally or intermittently
- with spaces between
