1. (n.) A space between things; a void space intervening between any two objects; as, an interval between two houses or hills.

2. (n.) Space of time between any two points or events; as, the interval between the death of Charles I. of England, and the accession of Charles II.

3. (n.) A brief space of time between the recurrence of similar conditions or states; as, the interval between paroxysms of pain; intervals of sanity or delirium.

4. (n.) Difference in pitch between any two tones.

5. (n.) Alt. of Intervale

abeyance amount aperture arrearage breach break broaching caesura caliber cavity cease-fire cessation chasm check clearing cleft coffee break comma compass consecutive intervals crack cut day day off defalcation defect deficiency deficit degree delay diapason diatessaron diatonic interval diatonic semitone disclosure discontinuity distance downtime drop enharmonic diesis enharmonic interval extent fateful moment fenestra fifth fissure fistula fontanel foramen fourth gap gape gat grade gulf half step half time half-time intermission halftone height hesitation hiatus hole holiday hollow hour inlet instant interim interlude intermezzo intermission intermittence interregnum interruption interstice juncture kairos lack lacuna lapse laying open layoff leak leap less semitone letup level lull mark meantime meanwhile measure melodic interval minute missing link moment moment of truth need notch note nuance octave off-time omission opening opening up orifice outage outlet parallel octaves parenthesis pas passageway pause peg period pitch plane plateau point point of repose pore pregnant moment proportion psychological moment quiet spell range ratio reach recess relief remission remove respite rest resting point round rung scale scope season second semitone seventh shade shadow shortage sixth slot space span spell split stage stair stand-down standard stay step stint stoma stretch suspension third throwing open time time lag time off time out tone tread truce ullage uncorking unison interval unstopping vacation void wait want wantage while whole step yawn