Added 9 October 2026 subprogram noun Categories: LanguageRare Words noun ! Definition from WordNet 3.1, Princeton University. More about subprogram at Wordnik → Where our words come from → A set sequence of steps, part of larger computer program. Related Words: subroutineprocedurefunctionroutineappletbuiltinthreadsuperprogramsubprogrammesubapplicationsubalgorithmsubprogrammer Back to today's word