Definitions
1.NounA speech or section used as an introduction, especially to a play or novel.
2.NounOne who delivers a prologue.
3.NounA component of a computer program that prepares the computer to execute a routine.
4.NounAn individual time trial before a stage race, used to determine which rider wears the leader's jersey on the first stage.
5.NounA liturgical book containing daily readings, including hagiography.
6.VerbTo introduce with a formal preface, or prologue.
7.Verb↑ Douglas Harper (2001–2026), “prologue”, in Online Etymology Dictionary.
8.Verb↑ Michaelis, Hermann; Jones, Daniel (1913), “'proulɔg [-loug]”, in A Phonetic Dictionary of the English Language (Sammlung Phonetischer Wörterbücher; 2), Hanover: Carl Meyer (Gustav Prior), →OCLC, page 344.