subroutine
nounUK /ˈsʌbruːtiːn/
US /ˈsʌbruːtiːn/
A small set of instructions that a computer can run again and again.
The programmer wrote a subroutine to add up all the numbers.
OTHER MEANINGS
2. A smaller part of a larger computer program that does one job.
The game calls a subroutine whenever the player scores a point.
3. A set of steps that can be reused in many places in code.
Instead of copying the same lines, she put them in a subroutine.
4. A routine that returns to the main program when it finishes.
After the subroutine ends, the program continues from where it left off.