1. A definite length of time marked off by two instants
   "The time interval between the lightning and thunder indicated the storm's distance";
   - time interval
    
2. A set containing all points (or all real numbers) between two given endpoints
   "The interval [0,1] contains all real numbers between 0 and 1, including 0 and 1"
    
3. The distance between things
   "The interval between the houses provided privacy";
   - separation
    
4. The difference in pitch between two notes
   "The perfect fifth is a common musical interval in many styles of music";
   - musical interval
    
5. [Brit] An intermission during a play, movie, show, etc.
   "During the interval, patrons rushed to the refreshment stand"

Derived forms: intervals

Type of: amount, distance, measure, musical notation, quantity, set

Encyclopedia: Interval