harbingera forerunner of something; a person or thing that announces or signals the approach of anotherThe first crocus of spring is often seen as a harbinger of warmer days ahead.NoteThe first crocus of spring is often seen as a harbinger of warmer days ahead.Elon.io is an online learning platformWe have an entire course teaching GRE Verbal — Essential Vocabulary grammar and vocabulary.Start learning GRE Verbal — Essential Vocabulary now