1. (computing) an error in logic or arithmetic that must be detected at run time
   "The program crashed due to an unexpected runtime error";
   - semantic error, run-time error

1. The time at which a (software or multimedia) program is run
   "The error only occurred at run-time, not during compilation"
    
2. (computing) the length of time it takes to execute a software program
   "The new algorithm significantly reduced the run-time of the application"

Derived forms: run-times

Type of: point, point in time, programming error, run, software error

Encyclopedia: Runtime error