routine

1. a set of predefined actions.
2. a lesser part of a great programming whole. syn. subroutine

1. He went through his routine every morning.
2. The routine was set, and the program needed to be tested.

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function

1. a tag that is programmer defined within a program to be used again later in the program.
2. syn. subroutine

1. The programmer made a function to display text.

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subroutine

a lesser part of a greater programming whole; a fixed sequence of steps within a program. see also routine function

The subroutines were correct; something else was wrong with the program.

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