prologue UK /ˈpɹəʊlɒɡ/US /ˈpɹoʊlɔɡ/noun 5verb 1forms 3 noun5 •A speech or section used as an introduction, especially to a play or novel. •A component of a computer program that prepares the computer to execute a routine. •An individual time trial before a stage race, used to determine which rider wears the leader's jersey on the first stage. •One who delivers a prologue.And hither am I come, / A Prologue arm’d, but not in confidence / Of Authors pen, or Actors voyce — 1602 •A liturgical book containing daily readings, including hagiography. verb1 •To introduce with a formal preface, or prologue.[…]harbindgers preceading still the fates and prologue to the Omen comming on[…] — 1599 formsprologued · prologuing · prologues